Home / 712,981.80-1,069,127.10-397,103.40

Finding the Fourth Proportional to 712,981.80, 1,069,127.10 and 397,103.40

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Solution

The fourth proportional to 712,981.80, 1,069,127.10 and 397,103.40 is: 595,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,981.80 : 1,069,127.10 = 397,103.40 : x
  2. Step 2: Convert to fraction form
    712,981.80/1,069,127.10 = 397,103.40/x
  3. Step 3: Cross multiply
    712,981.80x = 1,069,127.10 × 397,103.40
  4. Step 4: Simplify right side
    712,981.80x = 424,554,006,442.14
  5. Step 5: Solve for x
    x = 424,554,006,442.14/712,981.80
  6. Step 6: Final answer
    x = 595,462.61

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Double scale
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1.5x scale

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.