Home / 747,475.28-1,121,648.08-315,165.63

Finding the Fourth Proportional to 747,475.28, 1,121,648.08 and 315,165.63

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Solution

The fourth proportional to 747,475.28, 1,121,648.08 and 315,165.63 is: 472,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,475.28 : 1,121,648.08 = 315,165.63 : x
  2. Step 2: Convert to fraction form
    747,475.28/1,121,648.08 = 315,165.63/x
  3. Step 3: Cross multiply
    747,475.28x = 1,121,648.08 × 315,165.63
  4. Step 4: Simplify right side
    747,475.28x = 353,504,922,195.66
  5. Step 5: Solve for x
    x = 353,504,922,195.66/747,475.28
  6. Step 6: Final answer
    x = 472,931.92

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Double scale
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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.