Home / 840,505.68-1,159,900.56-458,540.46

Finding the Fourth Proportional to 840,505.68, 1,159,900.56 and 458,540.46

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Solution

The fourth proportional to 840,505.68, 1,159,900.56 and 458,540.46 is: 632,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,505.68 : 1,159,900.56 = 458,540.46 : x
  2. Step 2: Convert to fraction form
    840,505.68/1,159,900.56 = 458,540.46/x
  3. Step 3: Cross multiply
    840,505.68x = 1,159,900.56 × 458,540.46
  4. Step 4: Simplify right side
    840,505.68x = 531,861,336,336.66
  5. Step 5: Solve for x
    x = 531,861,336,336.66/840,505.68
  6. Step 6: Final answer
    x = 632,787.32

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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.