Home / 1,098,110.30-1,643,957.85-783,182.30

Finding the Fourth Proportional to 1,098,110.30, 1,643,957.85 and 783,182.30

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Solution

The fourth proportional to 1,098,110.30, 1,643,957.85 and 783,182.30 is: 1,172,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,110.30 : 1,643,957.85 = 783,182.30 : x
  2. Step 2: Convert to fraction form
    1,098,110.30/1,643,957.85 = 783,182.30/x
  3. Step 3: Cross multiply
    1,098,110.30x = 1,643,957.85 × 783,182.30
  4. Step 4: Simplify right side
    1,098,110.30x = 1,287,518,690,066.06
  5. Step 5: Solve for x
    x = 1,287,518,690,066.06/1,098,110.30
  6. Step 6: Final answer
    x = 1,172,485.76

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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.