Home / 928,001.70-1,392,002.55-484,712.10

Finding the Fourth Proportional to 928,001.70, 1,392,002.55 and 484,712.10

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Solution

The fourth proportional to 928,001.70, 1,392,002.55 and 484,712.10 is: 727,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,001.70 : 1,392,002.55 = 484,712.10 : x
  2. Step 2: Convert to fraction form
    928,001.70/1,392,002.55 = 484,712.10/x
  3. Step 3: Cross multiply
    928,001.70x = 1,392,002.55 × 484,712.10
  4. Step 4: Simplify right side
    928,001.70x = 674,720,479,215.86
  5. Step 5: Solve for x
    x = 674,720,479,215.86/928,001.70
  6. Step 6: Final answer
    x = 727,068.15

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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.