Home / 1,119,818.40-1,545,282.81-636,316.44

Finding the Fourth Proportional to 1,119,818.40, 1,545,282.81 and 636,316.44

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Solution

The fourth proportional to 1,119,818.40, 1,545,282.81 and 636,316.44 is: 878,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,818.40 : 1,545,282.81 = 636,316.44 : x
  2. Step 2: Convert to fraction form
    1,119,818.40/1,545,282.81 = 636,316.44/x
  3. Step 3: Cross multiply
    1,119,818.40x = 1,545,282.81 × 636,316.44
  4. Step 4: Simplify right side
    1,119,818.40x = 983,288,856,452.40
  5. Step 5: Solve for x
    x = 983,288,856,452.40/1,119,818.40
  6. Step 6: Final answer
    x = 878,078.85

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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.