Home / 1,238,192.64-1,708,950.92-803,149.13

Finding the Fourth Proportional to 1,238,192.64, 1,708,950.92 and 803,149.13

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Solution

The fourth proportional to 1,238,192.64, 1,708,950.92 and 803,149.13 is: 1,108,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,192.64 : 1,708,950.92 = 803,149.13 : x
  2. Step 2: Convert to fraction form
    1,238,192.64/1,708,950.92 = 803,149.13/x
  3. Step 3: Cross multiply
    1,238,192.64x = 1,708,950.92 × 803,149.13
  4. Step 4: Simplify right side
    1,238,192.64x = 1,372,542,432,050.20
  5. Step 5: Solve for x
    x = 1,372,542,432,050.20/1,238,192.64
  6. Step 6: Final answer
    x = 1,108,504.76

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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.