Home / 748,407.60-1,123,452.71-299,445.21

Finding the Fourth Proportional to 748,407.60, 1,123,452.71 and 299,445.21

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Solution

The fourth proportional to 748,407.60, 1,123,452.71 and 299,445.21 is: 449,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,407.60 : 1,123,452.71 = 299,445.21 : x
  2. Step 2: Convert to fraction form
    748,407.60/1,123,452.71 = 299,445.21/x
  3. Step 3: Cross multiply
    748,407.60x = 1,123,452.71 × 299,445.21
  4. Step 4: Simplify right side
    748,407.60x = 336,412,532,671.02
  5. Step 5: Solve for x
    x = 336,412,532,671.02/748,407.60
  6. Step 6: Final answer
    x = 449,504.43

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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.