Home / 1,170,129.76-1,614,951.42-686,961.40

Finding the Fourth Proportional to 1,170,129.76, 1,614,951.42 and 686,961.40

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Solution

The fourth proportional to 1,170,129.76, 1,614,951.42 and 686,961.40 is: 948,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,129.76 : 1,614,951.42 = 686,961.40 : x
  2. Step 2: Convert to fraction form
    1,170,129.76/1,614,951.42 = 686,961.40/x
  3. Step 3: Cross multiply
    1,170,129.76x = 1,614,951.42 × 686,961.40
  4. Step 4: Simplify right side
    1,170,129.76x = 1,109,409,288,415.19
  5. Step 5: Solve for x
    x = 1,109,409,288,415.19/1,170,129.76
  6. Step 6: Final answer
    x = 948,107.92

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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.