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Finding the Fourth Proportional to 545,608.86, 752,978.07 and 330,757.98

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Solution

The fourth proportional to 545,608.86, 752,978.07 and 330,757.98 is: 456,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,608.86 : 752,978.07 = 330,757.98 : x
  2. Step 2: Convert to fraction form
    545,608.86/752,978.07 = 330,757.98/x
  3. Step 3: Cross multiply
    545,608.86x = 752,978.07 × 330,757.98
  4. Step 4: Simplify right side
    545,608.86x = 249,053,505,417.50
  5. Step 5: Solve for x
    x = 249,053,505,417.50/545,608.86
  6. Step 6: Final answer
    x = 456,468.95

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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.