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Finding the Fourth Proportional to 442,687.13, 610,890.19 and 261,457.73

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Solution

The fourth proportional to 442,687.13, 610,890.19 and 261,457.73 is: 360,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,687.13 : 610,890.19 = 261,457.73 : x
  2. Step 2: Convert to fraction form
    442,687.13/610,890.19 = 261,457.73/x
  3. Step 3: Cross multiply
    442,687.13x = 610,890.19 × 261,457.73
  4. Step 4: Simplify right side
    442,687.13x = 159,721,962,356.67
  5. Step 5: Solve for x
    x = 159,721,962,356.67/442,687.13
  6. Step 6: Final answer
    x = 360,801.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.