Home / 414,557.74-621,836.64-115,038.40

Finding the Fourth Proportional to 414,557.74, 621,836.64 and 115,038.40

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Solution

The fourth proportional to 414,557.74, 621,836.64 and 115,038.40 is: 172,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,557.74 : 621,836.64 = 115,038.40 : x
  2. Step 2: Convert to fraction form
    414,557.74/621,836.64 = 115,038.40/x
  3. Step 3: Cross multiply
    414,557.74x = 621,836.64 × 115,038.40
  4. Step 4: Simplify right side
    414,557.74x = 71,535,092,126.98
  5. Step 5: Solve for x
    x = 71,535,092,126.98/414,557.74
  6. Step 6: Final answer
    x = 172,557.61

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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.