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Finding the Fourth Proportional to 545,616.88, 752,989.10 and 330,766

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Solution

The fourth proportional to 545,616.88, 752,989.10 and 330,766 is: 456,480.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,616.88 : 752,989.10 = 330,766 : x
  2. Step 2: Convert to fraction form
    545,616.88/752,989.10 = 330,766/x
  3. Step 3: Cross multiply
    545,616.88x = 752,989.10 × 330,766
  4. Step 4: Simplify right side
    545,616.88x = 249,063,192,650.60
  5. Step 5: Solve for x
    x = 249,063,192,650.60/545,616.88
  6. Step 6: Final answer
    x = 456,480.00

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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.