Home / 1,406,077.60-1,940,422.56-862,513.12

Finding the Fourth Proportional to 1,406,077.60, 1,940,422.56 and 862,513.12

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Solution

The fourth proportional to 1,406,077.60, 1,940,422.56 and 862,513.12 is: 1,190,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,077.60 : 1,940,422.56 = 862,513.12 : x
  2. Step 2: Convert to fraction form
    1,406,077.60/1,940,422.56 = 862,513.12/x
  3. Step 3: Cross multiply
    1,406,077.60x = 1,940,422.56 × 862,513.12
  4. Step 4: Simplify right side
    1,406,077.60x = 1,673,639,916,343.99
  5. Step 5: Solve for x
    x = 1,673,639,916,343.99/1,406,077.60
  6. Step 6: Final answer
    x = 1,190,289.86

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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.