Home / 1,098,193.80-1,648,845.90-861,803.40

Finding the Fourth Proportional to 1,098,193.80, 1,648,845.90 and 861,803.40

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Solution

The fourth proportional to 1,098,193.80, 1,648,845.90 and 861,803.40 is: 1,293,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,193.80 : 1,648,845.90 = 861,803.40 : x
  2. Step 2: Convert to fraction form
    1,098,193.80/1,648,845.90 = 861,803.40/x
  3. Step 3: Cross multiply
    1,098,193.80x = 1,648,845.90 × 861,803.40
  4. Step 4: Simplify right side
    1,098,193.80x = 1,420,981,002,696.06
  5. Step 5: Solve for x
    x = 1,420,981,002,696.06/1,098,193.80
  6. Step 6: Final answer
    x = 1,293,925.54

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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.