Home / 1,187,724.12-1,781,589.72-289,165.74

Finding the Fourth Proportional to 1,187,724.12, 1,781,589.72 and 289,165.74

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Solution

The fourth proportional to 1,187,724.12, 1,781,589.72 and 289,165.74 is: 433,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,724.12 : 1,781,589.72 = 289,165.74 : x
  2. Step 2: Convert to fraction form
    1,187,724.12/1,781,589.72 = 289,165.74/x
  3. Step 3: Cross multiply
    1,187,724.12x = 1,781,589.72 × 289,165.74
  4. Step 4: Simplify right side
    1,187,724.12x = 515,174,709,760.19
  5. Step 5: Solve for x
    x = 515,174,709,760.19/1,187,724.12
  6. Step 6: Final answer
    x = 433,749.47

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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.