Home / 497,374.75-745,438.15-212,731.24

Finding the Fourth Proportional to 497,374.75, 745,438.15 and 212,731.24

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Solution

The fourth proportional to 497,374.75, 745,438.15 and 212,731.24 is: 318,829.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,374.75 : 745,438.15 = 212,731.24 : x
  2. Step 2: Convert to fraction form
    497,374.75/745,438.15 = 212,731.24/x
  3. Step 3: Cross multiply
    497,374.75x = 745,438.15 × 212,731.24
  4. Step 4: Simplify right side
    497,374.75x = 158,577,979,097.97
  5. Step 5: Solve for x
    x = 158,577,979,097.97/497,374.75
  6. Step 6: Final answer
    x = 318,829.97

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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.