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Finding the Fourth Proportional to 542,003.60, 812,681.40 and 331,792.40

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Solution

The fourth proportional to 542,003.60, 812,681.40 and 331,792.40 is: 497,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,003.60 : 812,681.40 = 331,792.40 : x
  2. Step 2: Convert to fraction form
    542,003.60/812,681.40 = 331,792.40/x
  3. Step 3: Cross multiply
    542,003.60x = 812,681.40 × 331,792.40
  4. Step 4: Simplify right side
    542,003.60x = 269,641,512,141.36
  5. Step 5: Solve for x
    x = 269,641,512,141.36/542,003.60
  6. Step 6: Final answer
    x = 497,490.26

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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.