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Finding the Fourth Proportional to 539,080.20, 808,620.30 and 530,785.80

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Solution

The fourth proportional to 539,080.20, 808,620.30 and 530,785.80 is: 796,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,080.20 : 808,620.30 = 530,785.80 : x
  2. Step 2: Convert to fraction form
    539,080.20/808,620.30 = 530,785.80/x
  3. Step 3: Cross multiply
    539,080.20x = 808,620.30 × 530,785.80
  4. Step 4: Simplify right side
    539,080.20x = 429,204,172,831.74
  5. Step 5: Solve for x
    x = 429,204,172,831.74/539,080.20
  6. Step 6: Final answer
    x = 796,178.70

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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.