Home / 1,191,459.38-1,643,082.37-783,907.07

Finding the Fourth Proportional to 1,191,459.38, 1,643,082.37 and 783,907.07

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Solution

The fourth proportional to 1,191,459.38, 1,643,082.37 and 783,907.07 is: 1,081,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,459.38 : 1,643,082.37 = 783,907.07 : x
  2. Step 2: Convert to fraction form
    1,191,459.38/1,643,082.37 = 783,907.07/x
  3. Step 3: Cross multiply
    1,191,459.38x = 1,643,082.37 × 783,907.07
  4. Step 4: Simplify right side
    1,191,459.38x = 1,288,023,876,260.18
  5. Step 5: Solve for x
    x = 1,288,023,876,260.18/1,191,459.38
  6. Step 6: Final answer
    x = 1,081,047.25

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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.