Home / 884,043.22-1,220,126.40-521,556.20

Finding the Fourth Proportional to 884,043.22, 1,220,126.40 and 521,556.20

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Solution

The fourth proportional to 884,043.22, 1,220,126.40 and 521,556.20 is: 719,834.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,043.22 : 1,220,126.40 = 521,556.20 : x
  2. Step 2: Convert to fraction form
    884,043.22/1,220,126.40 = 521,556.20/x
  3. Step 3: Cross multiply
    884,043.22x = 1,220,126.40 × 521,556.20
  4. Step 4: Simplify right side
    884,043.22x = 636,364,488,703.68
  5. Step 5: Solve for x
    x = 636,364,488,703.68/884,043.22
  6. Step 6: Final answer
    x = 719,834.14

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.