Home / 747,153.81-1,120,726.87-291,791.25

Finding the Fourth Proportional to 747,153.81, 1,120,726.87 and 291,791.25

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Solution

The fourth proportional to 747,153.81, 1,120,726.87 and 291,791.25 is: 437,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,153.81 : 1,120,726.87 = 291,791.25 : x
  2. Step 2: Convert to fraction form
    747,153.81/1,120,726.87 = 291,791.25/x
  3. Step 3: Cross multiply
    747,153.81x = 1,120,726.87 × 291,791.25
  4. Step 4: Simplify right side
    747,153.81x = 327,018,293,576.41
  5. Step 5: Solve for x
    x = 327,018,293,576.41/747,153.81
  6. Step 6: Final answer
    x = 437,685.37

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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.