Home / 1,145,790.96-1,581,137.88-636,524.40

Finding the Fourth Proportional to 1,145,790.96, 1,581,137.88 and 636,524.40

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Solution

The fourth proportional to 1,145,790.96, 1,581,137.88 and 636,524.40 is: 878,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,790.96 : 1,581,137.88 = 636,524.40 : x
  2. Step 2: Convert to fraction form
    1,145,790.96/1,581,137.88 = 636,524.40/x
  3. Step 3: Cross multiply
    1,145,790.96x = 1,581,137.88 × 636,524.40
  4. Step 4: Simplify right side
    1,145,790.96x = 1,006,432,840,384.27
  5. Step 5: Solve for x
    x = 1,006,432,840,384.27/1,145,790.96
  6. Step 6: Final answer
    x = 878,373.87

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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.