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Finding the Fourth Proportional to 464,059.28, 640,442.12 and 270,456.80

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Solution

The fourth proportional to 464,059.28, 640,442.12 and 270,456.80 is: 373,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,059.28 : 640,442.12 = 270,456.80 : x
  2. Step 2: Convert to fraction form
    464,059.28/640,442.12 = 270,456.80/x
  3. Step 3: Cross multiply
    464,059.28x = 640,442.12 × 270,456.80
  4. Step 4: Simplify right side
    464,059.28x = 173,211,926,360.42
  5. Step 5: Solve for x
    x = 173,211,926,360.42/464,059.28
  6. Step 6: Final answer
    x = 373,253.88

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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.