Home / 1,181,605.13-1,630,606.78-645,061.13

Finding the Fourth Proportional to 1,181,605.13, 1,630,606.78 and 645,061.13

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Solution

The fourth proportional to 1,181,605.13, 1,630,606.78 and 645,061.13 is: 890,179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,605.13 : 1,630,606.78 = 645,061.13 : x
  2. Step 2: Convert to fraction form
    1,181,605.13/1,630,606.78 = 645,061.13/x
  3. Step 3: Cross multiply
    1,181,605.13x = 1,630,606.78 × 645,061.13
  4. Step 4: Simplify right side
    1,181,605.13x = 1,051,841,052,092.46
  5. Step 5: Solve for x
    x = 1,051,841,052,092.46/1,181,605.13
  6. Step 6: Final answer
    x = 890,179.83

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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.