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Finding the Fourth Proportional to 550,531.32, 759,006.12 and 359,212.56

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Solution

The fourth proportional to 550,531.32, 759,006.12 and 359,212.56 is: 495,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,531.32 : 759,006.12 = 359,212.56 : x
  2. Step 2: Convert to fraction form
    550,531.32/759,006.12 = 359,212.56/x
  3. Step 3: Cross multiply
    550,531.32x = 759,006.12 × 359,212.56
  4. Step 4: Simplify right side
    550,531.32x = 272,644,531,420.87
  5. Step 5: Solve for x
    x = 272,644,531,420.87/550,531.32
  6. Step 6: Final answer
    x = 495,238.91

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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.