Home / 971,125.76-1,340,154.40-541,397.28

Finding the Fourth Proportional to 971,125.76, 1,340,154.40 and 541,397.28

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Solution

The fourth proportional to 971,125.76, 1,340,154.40 and 541,397.28 is: 747,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,125.76 : 1,340,154.40 = 541,397.28 : x
  2. Step 2: Convert to fraction form
    971,125.76/1,340,154.40 = 541,397.28/x
  3. Step 3: Cross multiply
    971,125.76x = 1,340,154.40 × 541,397.28
  4. Step 4: Simplify right side
    971,125.76x = 725,555,946,940.03
  5. Step 5: Solve for x
    x = 725,555,946,940.03/971,125.76
  6. Step 6: Final answer
    x = 747,128.72

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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.