Home / 1,239,552.75-1,710,667.49-688,296.90

Finding the Fourth Proportional to 1,239,552.75, 1,710,667.49 and 688,296.90

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Solution

The fourth proportional to 1,239,552.75, 1,710,667.49 and 688,296.90 is: 949,896.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,552.75 : 1,710,667.49 = 688,296.90 : x
  2. Step 2: Convert to fraction form
    1,239,552.75/1,710,667.49 = 688,296.90/x
  3. Step 3: Cross multiply
    1,239,552.75x = 1,710,667.49 × 688,296.90
  4. Step 4: Simplify right side
    1,239,552.75x = 1,177,447,126,856.30
  5. Step 5: Solve for x
    x = 1,177,447,126,856.30/1,239,552.75
  6. Step 6: Final answer
    x = 949,896.75

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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.