Home / 748,874.80-1,123,312.20-465,439.60

Finding the Fourth Proportional to 748,874.80, 1,123,312.20 and 465,439.60

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Solution

The fourth proportional to 748,874.80, 1,123,312.20 and 465,439.60 is: 698,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,874.80 : 1,123,312.20 = 465,439.60 : x
  2. Step 2: Convert to fraction form
    748,874.80/1,123,312.20 = 465,439.60/x
  3. Step 3: Cross multiply
    748,874.80x = 1,123,312.20 × 465,439.60
  4. Step 4: Simplify right side
    748,874.80x = 522,833,981,043.12
  5. Step 5: Solve for x
    x = 522,833,981,043.12/748,874.80
  6. Step 6: Final answer
    x = 698,159.40

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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.