Home / 454,319.40-681,479.10-348,031.20

Finding the Fourth Proportional to 454,319.40, 681,479.10 and 348,031.20

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Solution

The fourth proportional to 454,319.40, 681,479.10 and 348,031.20 is: 522,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,319.40 : 681,479.10 = 348,031.20 : x
  2. Step 2: Convert to fraction form
    454,319.40/681,479.10 = 348,031.20/x
  3. Step 3: Cross multiply
    454,319.40x = 681,479.10 × 348,031.20
  4. Step 4: Simplify right side
    454,319.40x = 237,175,988,947.92
  5. Step 5: Solve for x
    x = 237,175,988,947.92/454,319.40
  6. Step 6: Final answer
    x = 522,046.80

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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.