Home / 479,815.16-719,723.60-124,828.61

Finding the Fourth Proportional to 479,815.16, 719,723.60 and 124,828.61

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Solution

The fourth proportional to 479,815.16, 719,723.60 and 124,828.61 is: 187,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,815.16 : 719,723.60 = 124,828.61 : x
  2. Step 2: Convert to fraction form
    479,815.16/719,723.60 = 124,828.61/x
  3. Step 3: Cross multiply
    479,815.16x = 719,723.60 × 124,828.61
  4. Step 4: Simplify right side
    479,815.16x = 89,842,095,948.05
  5. Step 5: Solve for x
    x = 89,842,095,948.05/479,815.16
  6. Step 6: Final answer
    x = 187,243.14

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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.