Home / 665,787.59-998,829.38-310,607.86

Finding the Fourth Proportional to 665,787.59, 998,829.38 and 310,607.86

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Solution

The fourth proportional to 665,787.59, 998,829.38 and 310,607.86 is: 465,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,787.59 : 998,829.38 = 310,607.86 : x
  2. Step 2: Convert to fraction form
    665,787.59/998,829.38 = 310,607.86/x
  3. Step 3: Cross multiply
    665,787.59x = 998,829.38 × 310,607.86
  4. Step 4: Simplify right side
    665,787.59x = 310,244,251,232.78
  5. Step 5: Solve for x
    x = 310,244,251,232.78/665,787.59
  6. Step 6: Final answer
    x = 465,980.83

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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.