Home / 808,292.48-1,115,248.56-521,751.20

Finding the Fourth Proportional to 808,292.48, 1,115,248.56 and 521,751.20

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Solution

The fourth proportional to 808,292.48, 1,115,248.56 and 521,751.20 is: 719,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,292.48 : 1,115,248.56 = 521,751.20 : x
  2. Step 2: Convert to fraction form
    808,292.48/1,115,248.56 = 521,751.20/x
  3. Step 3: Cross multiply
    808,292.48x = 1,115,248.56 × 521,751.20
  4. Step 4: Simplify right side
    808,292.48x = 581,882,274,478.27
  5. Step 5: Solve for x
    x = 581,882,274,478.27/808,292.48
  6. Step 6: Final answer
    x = 719,890.74

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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.