Home / 1,291,140.05-1,781,749.10-883,228.10

Finding the Fourth Proportional to 1,291,140.05, 1,781,749.10 and 883,228.10

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Solution

The fourth proportional to 1,291,140.05, 1,781,749.10 and 883,228.10 is: 1,218,838.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,140.05 : 1,781,749.10 = 883,228.10 : x
  2. Step 2: Convert to fraction form
    1,291,140.05/1,781,749.10 = 883,228.10/x
  3. Step 3: Cross multiply
    1,291,140.05x = 1,781,749.10 × 883,228.10
  4. Step 4: Simplify right side
    1,291,140.05x = 1,573,690,867,853.57
  5. Step 5: Solve for x
    x = 1,573,690,867,853.57/1,291,140.05
  6. Step 6: Final answer
    x = 1,218,838.24

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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.