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Finding the Fourth Proportional to 720,371.85, 994,151.42 and 414,494.71

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Solution

The fourth proportional to 720,371.85, 994,151.42 and 414,494.71 is: 572,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,371.85 : 994,151.42 = 414,494.71 : x
  2. Step 2: Convert to fraction form
    720,371.85/994,151.42 = 414,494.71/x
  3. Step 3: Cross multiply
    720,371.85x = 994,151.42 × 414,494.71
  4. Step 4: Simplify right side
    720,371.85x = 412,070,504,528.99
  5. Step 5: Solve for x
    x = 412,070,504,528.99/720,371.85
  6. Step 6: Final answer
    x = 572,024.72

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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.