Home / 437,905.60-656,877.84-171,642.40

Finding the Fourth Proportional to 437,905.60, 656,877.84 and 171,642.40

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Solution

The fourth proportional to 437,905.60, 656,877.84 and 171,642.40 is: 257,471.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,905.60 : 656,877.84 = 171,642.40 : x
  2. Step 2: Convert to fraction form
    437,905.60/656,877.84 = 171,642.40/x
  3. Step 3: Cross multiply
    437,905.60x = 656,877.84 × 171,642.40
  4. Step 4: Simplify right side
    437,905.60x = 112,748,088,964.42
  5. Step 5: Solve for x
    x = 112,748,088,964.42/437,905.60
  6. Step 6: Final answer
    x = 257,471.22

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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.