Home / 545,621.61-752,995.68-330,770.73

Finding the Fourth Proportional to 545,621.61, 752,995.68 and 330,770.73

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Solution

The fourth proportional to 545,621.61, 752,995.68 and 330,770.73 is: 456,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,621.61 : 752,995.68 = 330,770.73 : x
  2. Step 2: Convert to fraction form
    545,621.61/752,995.68 = 330,770.73/x
  3. Step 3: Cross multiply
    545,621.61x = 752,995.68 × 330,770.73
  4. Step 4: Simplify right side
    545,621.61x = 249,068,930,760.45
  5. Step 5: Solve for x
    x = 249,068,930,760.45/545,621.61
  6. Step 6: Final answer
    x = 456,486.56

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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.