Home / 480,886.31-721,473.89-143,937.96

Finding the Fourth Proportional to 480,886.31, 721,473.89 and 143,937.96

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Solution

The fourth proportional to 480,886.31, 721,473.89 and 143,937.96 is: 215,950.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,886.31 : 721,473.89 = 143,937.96 : x
  2. Step 2: Convert to fraction form
    480,886.31/721,473.89 = 143,937.96/x
  3. Step 3: Cross multiply
    480,886.31x = 721,473.89 × 143,937.96
  4. Step 4: Simplify right side
    480,886.31x = 103,847,479,200.18
  5. Step 5: Solve for x
    x = 103,847,479,200.18/480,886.31
  6. Step 6: Final answer
    x = 215,950.17

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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.