Home / 1,238,018.13-1,707,836.23-808,549.65

Finding the Fourth Proportional to 1,238,018.13, 1,707,836.23 and 808,549.65

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Solution

The fourth proportional to 1,238,018.13, 1,707,836.23 and 808,549.65 is: 1,115,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,018.13 : 1,707,836.23 = 808,549.65 : x
  2. Step 2: Convert to fraction form
    1,238,018.13/1,707,836.23 = 808,549.65/x
  3. Step 3: Cross multiply
    1,238,018.13x = 1,707,836.23 × 808,549.65
  4. Step 4: Simplify right side
    1,238,018.13x = 1,380,870,386,023.82
  5. Step 5: Solve for x
    x = 1,380,870,386,023.82/1,238,018.13
  6. Step 6: Final answer
    x = 1,115,387.85

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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.