Home / 1,098,081.80-1,643,915.10-783,153.80

Finding the Fourth Proportional to 1,098,081.80, 1,643,915.10 and 783,153.80

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Solution

The fourth proportional to 1,098,081.80, 1,643,915.10 and 783,153.80 is: 1,172,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,081.80 : 1,643,915.10 = 783,153.80 : x
  2. Step 2: Convert to fraction form
    1,098,081.80/1,643,915.10 = 783,153.80/x
  3. Step 3: Cross multiply
    1,098,081.80x = 1,643,915.10 × 783,153.80
  4. Step 4: Simplify right side
    1,098,081.80x = 1,287,438,357,442.38
  5. Step 5: Solve for x
    x = 1,287,438,357,442.38/1,098,081.80
  6. Step 6: Final answer
    x = 1,172,443.03

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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.