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Finding the Fourth Proportional to 541,348.18, 747,033.84 and 308,784.31

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Solution

The fourth proportional to 541,348.18, 747,033.84 and 308,784.31 is: 426,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,348.18 : 747,033.84 = 308,784.31 : x
  2. Step 2: Convert to fraction form
    541,348.18/747,033.84 = 308,784.31/x
  3. Step 3: Cross multiply
    541,348.18x = 747,033.84 × 308,784.31
  4. Step 4: Simplify right side
    541,348.18x = 230,672,328,831.05
  5. Step 5: Solve for x
    x = 230,672,328,831.05/541,348.18
  6. Step 6: Final answer
    x = 426,107.15

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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.