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Finding the Fourth Proportional to 539,320.70, 808,981.05 and 506,078.30

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Solution

The fourth proportional to 539,320.70, 808,981.05 and 506,078.30 is: 759,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,320.70 : 808,981.05 = 506,078.30 : x
  2. Step 2: Convert to fraction form
    539,320.70/808,981.05 = 506,078.30/x
  3. Step 3: Cross multiply
    539,320.70x = 808,981.05 × 506,078.30
  4. Step 4: Simplify right side
    539,320.70x = 409,407,754,516.22
  5. Step 5: Solve for x
    x = 409,407,754,516.22/539,320.70
  6. Step 6: Final answer
    x = 759,117.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.