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Finding the Fourth Proportional to 884,375.60, 1,220,427.92 and 521,800.16

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Solution

The fourth proportional to 884,375.60, 1,220,427.92 and 521,800.16 is: 720,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,375.60 : 1,220,427.92 = 521,800.16 : x
  2. Step 2: Convert to fraction form
    884,375.60/1,220,427.92 = 521,800.16/x
  3. Step 3: Cross multiply
    884,375.60x = 1,220,427.92 × 521,800.16
  4. Step 4: Simplify right side
    884,375.60x = 636,819,483,924.47
  5. Step 5: Solve for x
    x = 636,819,483,924.47/884,375.60
  6. Step 6: Final answer
    x = 720,078.08

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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.