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Finding the Fourth Proportional to 662,765.20, 914,615.97 and 360,959.20

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Solution

The fourth proportional to 662,765.20, 914,615.97 and 360,959.20 is: 498,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,765.20 : 914,615.97 = 360,959.20 : x
  2. Step 2: Convert to fraction form
    662,765.20/914,615.97 = 360,959.20/x
  3. Step 3: Cross multiply
    662,765.20x = 914,615.97 × 360,959.20
  4. Step 4: Simplify right side
    662,765.20x = 330,139,048,838.42
  5. Step 5: Solve for x
    x = 330,139,048,838.42/662,765.20
  6. Step 6: Final answer
    x = 498,123.69

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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.