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Finding the Fourth Proportional to 692,280.68, 955,359.78 and 406,007.24

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Solution

The fourth proportional to 692,280.68, 955,359.78 and 406,007.24 is: 560,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,280.68 : 955,359.78 = 406,007.24 : x
  2. Step 2: Convert to fraction form
    692,280.68/955,359.78 = 406,007.24/x
  3. Step 3: Cross multiply
    692,280.68x = 955,359.78 × 406,007.24
  4. Step 4: Simplify right side
    692,280.68x = 387,882,987,484.81
  5. Step 5: Solve for x
    x = 387,882,987,484.81/692,280.68
  6. Step 6: Final answer
    x = 560,297.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.