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Finding the Fourth Proportional to 660,885.39, 912,024.24 and 359,079.39

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Solution

The fourth proportional to 660,885.39, 912,024.24 and 359,079.39 is: 495,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,885.39 : 912,024.24 = 359,079.39 : x
  2. Step 2: Convert to fraction form
    660,885.39/912,024.24 = 359,079.39/x
  3. Step 3: Cross multiply
    660,885.39x = 912,024.24 × 359,079.39
  4. Step 4: Simplify right side
    660,885.39x = 327,489,107,764.41
  5. Step 5: Solve for x
    x = 327,489,107,764.41/660,885.39
  6. Step 6: Final answer
    x = 495,530.86

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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.