Home / 784,981.80-1,175,139.90-469,276.20

Finding the Fourth Proportional to 784,981.80, 1,175,139.90 and 469,276.20

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Solution

The fourth proportional to 784,981.80, 1,175,139.90 and 469,276.20 is: 702,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,981.80 : 1,175,139.90 = 469,276.20 : x
  2. Step 2: Convert to fraction form
    784,981.80/1,175,139.90 = 469,276.20/x
  3. Step 3: Cross multiply
    784,981.80x = 1,175,139.90 × 469,276.20
  4. Step 4: Simplify right side
    784,981.80x = 551,465,186,740.38
  5. Step 5: Solve for x
    x = 551,465,186,740.38/784,981.80
  6. Step 6: Final answer
    x = 702,519.71

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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.