Home / 725,615.40-1,088,423.10-331,631.40

Finding the Fourth Proportional to 725,615.40, 1,088,423.10 and 331,631.40

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Solution

The fourth proportional to 725,615.40, 1,088,423.10 and 331,631.40 is: 497,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,615.40 : 1,088,423.10 = 331,631.40 : x
  2. Step 2: Convert to fraction form
    725,615.40/1,088,423.10 = 331,631.40/x
  3. Step 3: Cross multiply
    725,615.40x = 1,088,423.10 × 331,631.40
  4. Step 4: Simplify right side
    725,615.40x = 360,955,276,445.34
  5. Step 5: Solve for x
    x = 360,955,276,445.34/725,615.40
  6. Step 6: Final answer
    x = 497,447.10

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Half scale
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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.