Home / 765,681.32-1,146,515.41-539,818.90

Finding the Fourth Proportional to 765,681.32, 1,146,515.41 and 539,818.90

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Solution

The fourth proportional to 765,681.32, 1,146,515.41 and 539,818.90 is: 808,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,681.32 : 1,146,515.41 = 539,818.90 : x
  2. Step 2: Convert to fraction form
    765,681.32/1,146,515.41 = 539,818.90/x
  3. Step 3: Cross multiply
    765,681.32x = 1,146,515.41 × 539,818.90
  4. Step 4: Simplify right side
    765,681.32x = 618,910,685,267.73
  5. Step 5: Solve for x
    x = 618,910,685,267.73/765,681.32
  6. Step 6: Final answer
    x = 808,313.68

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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.