Home / 1,238,239.38-1,857,359.46-817,416.84

Finding the Fourth Proportional to 1,238,239.38, 1,857,359.46 and 817,416.84

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Solution

The fourth proportional to 1,238,239.38, 1,857,359.46 and 817,416.84 is: 1,226,125.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,239.38 : 1,857,359.46 = 817,416.84 : x
  2. Step 2: Convert to fraction form
    1,238,239.38/1,857,359.46 = 817,416.84/x
  3. Step 3: Cross multiply
    1,238,239.38x = 1,857,359.46 × 817,416.84
  4. Step 4: Simplify right side
    1,238,239.38x = 1,518,236,900,537.31
  5. Step 5: Solve for x
    x = 1,518,236,900,537.31/1,238,239.38
  6. Step 6: Final answer
    x = 1,226,125.52

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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.