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Finding the Fourth Proportional to 464,344.32, 640,523.67 and 291,989.52

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Solution

The fourth proportional to 464,344.32, 640,523.67 and 291,989.52 is: 402,774.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,344.32 : 640,523.67 = 291,989.52 : x
  2. Step 2: Convert to fraction form
    464,344.32/640,523.67 = 291,989.52/x
  3. Step 3: Cross multiply
    464,344.32x = 640,523.67 × 291,989.52
  4. Step 4: Simplify right side
    464,344.32x = 187,026,198,951.94
  5. Step 5: Solve for x
    x = 187,026,198,951.94/464,344.32
  6. Step 6: Final answer
    x = 402,774.82

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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.