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Finding the Fourth Proportional to 660,932.32, 912,092.20 and 359,126.32

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Solution

The fourth proportional to 660,932.32, 912,092.20 and 359,126.32 is: 495,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,932.32 : 912,092.20 = 359,126.32 : x
  2. Step 2: Convert to fraction form
    660,932.32/912,092.20 = 359,126.32/x
  3. Step 3: Cross multiply
    660,932.32x = 912,092.20 × 359,126.32
  4. Step 4: Simplify right side
    660,932.32x = 327,556,315,286.70
  5. Step 5: Solve for x
    x = 327,556,315,286.70/660,932.32
  6. Step 6: Final answer
    x = 495,597.36

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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.