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Finding the Fourth Proportional to 542,391.24, 748,499.90 and 300,673.20

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Solution

The fourth proportional to 542,391.24, 748,499.90 and 300,673.20 is: 414,929.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,391.24 : 748,499.90 = 300,673.20 : x
  2. Step 2: Convert to fraction form
    542,391.24/748,499.90 = 300,673.20/x
  3. Step 3: Cross multiply
    542,391.24x = 748,499.90 × 300,673.20
  4. Step 4: Simplify right side
    542,391.24x = 225,053,860,132.68
  5. Step 5: Solve for x
    x = 225,053,860,132.68/542,391.24
  6. Step 6: Final answer
    x = 414,929.01

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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.