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Finding the Fourth Proportional to 542,575.18, 748,792.11 and 300,880.90

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Solution

The fourth proportional to 542,575.18, 748,792.11 and 300,880.90 is: 415,236.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,575.18 : 748,792.11 = 300,880.90 : x
  2. Step 2: Convert to fraction form
    542,575.18/748,792.11 = 300,880.90/x
  3. Step 3: Cross multiply
    542,575.18x = 748,792.11 × 300,880.90
  4. Step 4: Simplify right side
    542,575.18x = 225,297,243,969.70
  5. Step 5: Solve for x
    x = 225,297,243,969.70/542,575.18
  6. Step 6: Final answer
    x = 415,236.92

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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.