Home / 878,711.83-1,317,593.59-398,677.65

Finding the Fourth Proportional to 878,711.83, 1,317,593.59 and 398,677.65

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Solution

The fourth proportional to 878,711.83, 1,317,593.59 and 398,677.65 is: 597,801.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,711.83 : 1,317,593.59 = 398,677.65 : x
  2. Step 2: Convert to fraction form
    878,711.83/1,317,593.59 = 398,677.65/x
  3. Step 3: Cross multiply
    878,711.83x = 1,317,593.59 × 398,677.65
  4. Step 4: Simplify right side
    878,711.83x = 525,295,110,178.59
  5. Step 5: Solve for x
    x = 525,295,110,178.59/878,711.83
  6. Step 6: Final answer
    x = 597,801.34

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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.