Home / 765,411.48-1,148,256.54-253,105.92

Finding the Fourth Proportional to 765,411.48, 1,148,256.54 and 253,105.92

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Solution

The fourth proportional to 765,411.48, 1,148,256.54 and 253,105.92 is: 379,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,411.48 : 1,148,256.54 = 253,105.92 : x
  2. Step 2: Convert to fraction form
    765,411.48/1,148,256.54 = 253,105.92/x
  3. Step 3: Cross multiply
    765,411.48x = 1,148,256.54 × 253,105.92
  4. Step 4: Simplify right side
    765,411.48x = 290,630,527,952.72
  5. Step 5: Solve for x
    x = 290,630,527,952.72/765,411.48
  6. Step 6: Final answer
    x = 379,704.95

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Double scale
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Similar ratio
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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.