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Finding the Fourth Proportional to 437,853.80, 656,732.10 and 358,830.20

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Solution

The fourth proportional to 437,853.80, 656,732.10 and 358,830.20 is: 538,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,853.80 : 656,732.10 = 358,830.20 : x
  2. Step 2: Convert to fraction form
    437,853.80/656,732.10 = 358,830.20/x
  3. Step 3: Cross multiply
    437,853.80x = 656,732.10 × 358,830.20
  4. Step 4: Simplify right side
    437,853.80x = 235,655,310,789.42
  5. Step 5: Solve for x
    x = 235,655,310,789.42/437,853.80
  6. Step 6: Final answer
    x = 538,205.47

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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.