Home / 749,114.10-1,123,671.15-413,190.90

Finding the Fourth Proportional to 749,114.10, 1,123,671.15 and 413,190.90

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Solution

The fourth proportional to 749,114.10, 1,123,671.15 and 413,190.90 is: 619,786.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,114.10 : 1,123,671.15 = 413,190.90 : x
  2. Step 2: Convert to fraction form
    749,114.10/1,123,671.15 = 413,190.90/x
  3. Step 3: Cross multiply
    749,114.10x = 1,123,671.15 × 413,190.90
  4. Step 4: Simplify right side
    749,114.10x = 464,290,693,772.54
  5. Step 5: Solve for x
    x = 464,290,693,772.54/749,114.10
  6. Step 6: Final answer
    x = 619,786.35

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Double scale
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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.