Home / 1,231,345.60-1,843,681.92-639,125.44

Finding the Fourth Proportional to 1,231,345.60, 1,843,681.92 and 639,125.44

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Solution

The fourth proportional to 1,231,345.60, 1,843,681.92 and 639,125.44 is: 956,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,345.60 : 1,843,681.92 = 639,125.44 : x
  2. Step 2: Convert to fraction form
    1,231,345.60/1,843,681.92 = 639,125.44/x
  3. Step 3: Cross multiply
    1,231,345.60x = 1,843,681.92 × 639,125.44
  4. Step 4: Simplify right side
    1,231,345.60x = 1,178,344,018,340.04
  5. Step 5: Solve for x
    x = 1,178,344,018,340.04/1,231,345.60
  6. Step 6: Final answer
    x = 956,956.37

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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.