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Finding the Fourth Proportional to 542,247.34, 748,130.33 and 312,773.86

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Solution

The fourth proportional to 542,247.34, 748,130.33 and 312,773.86 is: 431,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,247.34 : 748,130.33 = 312,773.86 : x
  2. Step 2: Convert to fraction form
    542,247.34/748,130.33 = 312,773.86/x
  3. Step 3: Cross multiply
    542,247.34x = 748,130.33 × 312,773.86
  4. Step 4: Simplify right side
    542,247.34x = 233,995,607,662.98
  5. Step 5: Solve for x
    x = 233,995,607,662.98/542,247.34
  6. Step 6: Final answer
    x = 431,529.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.