Home / 1,165,235.90-1,744,901.40-929,039.90

Finding the Fourth Proportional to 1,165,235.90, 1,744,901.40 and 929,039.90

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Solution

The fourth proportional to 1,165,235.90, 1,744,901.40 and 929,039.90 is: 1,391,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,235.90 : 1,744,901.40 = 929,039.90 : x
  2. Step 2: Convert to fraction form
    1,165,235.90/1,744,901.40 = 929,039.90/x
  3. Step 3: Cross multiply
    1,165,235.90x = 1,744,901.40 × 929,039.90
  4. Step 4: Simplify right side
    1,165,235.90x = 1,621,083,022,165.86
  5. Step 5: Solve for x
    x = 1,621,083,022,165.86/1,165,235.90
  6. Step 6: Final answer
    x = 1,391,205.87

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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.