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Finding the Fourth Proportional to 392,434.80, 588,047.40 and 292,124.40

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Solution

The fourth proportional to 392,434.80, 588,047.40 and 292,124.40 is: 437,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,434.80 : 588,047.40 = 292,124.40 : x
  2. Step 2: Convert to fraction form
    392,434.80/588,047.40 = 292,124.40/x
  3. Step 3: Cross multiply
    392,434.80x = 588,047.40 × 292,124.40
  4. Step 4: Simplify right side
    392,434.80x = 171,782,993,896.56
  5. Step 5: Solve for x
    x = 171,782,993,896.56/392,434.80
  6. Step 6: Final answer
    x = 437,736.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.