Home / 1,172,689.92-1,618,315.20-636,145.92

Finding the Fourth Proportional to 1,172,689.92, 1,618,315.20 and 636,145.92

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Solution

The fourth proportional to 1,172,689.92, 1,618,315.20 and 636,145.92 is: 877,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,689.92 : 1,618,315.20 = 636,145.92 : x
  2. Step 2: Convert to fraction form
    1,172,689.92/1,618,315.20 = 636,145.92/x
  3. Step 3: Cross multiply
    1,172,689.92x = 1,618,315.20 × 636,145.92
  4. Step 4: Simplify right side
    1,172,689.92x = 1,029,484,611,753.98
  5. Step 5: Solve for x
    x = 1,029,484,611,753.98/1,172,689.92
  6. Step 6: Final answer
    x = 877,883.06

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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.