Home / 812,001.94-1,217,449.32-411,871.15

Finding the Fourth Proportional to 812,001.94, 1,217,449.32 and 411,871.15

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Solution

The fourth proportional to 812,001.94, 1,217,449.32 and 411,871.15 is: 617,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,001.94 : 1,217,449.32 = 411,871.15 : x
  2. Step 2: Convert to fraction form
    812,001.94/1,217,449.32 = 411,871.15/x
  3. Step 3: Cross multiply
    812,001.94x = 1,217,449.32 × 411,871.15
  4. Step 4: Simplify right side
    812,001.94x = 501,432,251,495.12
  5. Step 5: Solve for x
    x = 501,432,251,495.12/812,001.94
  6. Step 6: Final answer
    x = 617,525.93

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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.