Home / 437,947.60-656,872.80-122,436.40

Finding the Fourth Proportional to 437,947.60, 656,872.80 and 122,436.40

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Solution

The fourth proportional to 437,947.60, 656,872.80 and 122,436.40 is: 183,641.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,947.60 : 656,872.80 = 122,436.40 : x
  2. Step 2: Convert to fraction form
    437,947.60/656,872.80 = 122,436.40/x
  3. Step 3: Cross multiply
    437,947.60x = 656,872.80 × 122,436.40
  4. Step 4: Simplify right side
    437,947.60x = 80,425,140,889.92
  5. Step 5: Solve for x
    x = 80,425,140,889.92/437,947.60
  6. Step 6: Final answer
    x = 183,641.01

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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.