Home / 1,124,956.68-1,687,761.81-405,284.72

Finding the Fourth Proportional to 1,124,956.68, 1,687,761.81 and 405,284.72

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Solution

The fourth proportional to 1,124,956.68, 1,687,761.81 and 405,284.72 is: 608,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,956.68 : 1,687,761.81 = 405,284.72 : x
  2. Step 2: Convert to fraction form
    1,124,956.68/1,687,761.81 = 405,284.72/x
  3. Step 3: Cross multiply
    1,124,956.68x = 1,687,761.81 × 405,284.72
  4. Step 4: Simplify right side
    1,124,956.68x = 684,024,064,153.73
  5. Step 5: Solve for x
    x = 684,024,064,153.73/1,124,956.68
  6. Step 6: Final answer
    x = 608,044.80

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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.