Home / 747,612.20-1,031,704.56-408,080.45

Finding the Fourth Proportional to 747,612.20, 1,031,704.56 and 408,080.45

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Solution

The fourth proportional to 747,612.20, 1,031,704.56 and 408,080.45 is: 563,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,612.20 : 1,031,704.56 = 408,080.45 : x
  2. Step 2: Convert to fraction form
    747,612.20/1,031,704.56 = 408,080.45/x
  3. Step 3: Cross multiply
    747,612.20x = 1,031,704.56 × 408,080.45
  4. Step 4: Simplify right side
    747,612.20x = 421,018,455,953.33
  5. Step 5: Solve for x
    x = 421,018,455,953.33/747,612.20
  6. Step 6: Final answer
    x = 563,150.87

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Double scale
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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.