Home / 1,299,206.90-1,947,255.15-667,795.70

Finding the Fourth Proportional to 1,299,206.90, 1,947,255.15 and 667,795.70

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Solution

The fourth proportional to 1,299,206.90, 1,947,255.15 and 667,795.70 is: 1,000,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,206.90 : 1,947,255.15 = 667,795.70 : x
  2. Step 2: Convert to fraction form
    1,299,206.90/1,947,255.15 = 667,795.70/x
  3. Step 3: Cross multiply
    1,299,206.90x = 1,947,255.15 × 667,795.70
  4. Step 4: Simplify right side
    1,299,206.90x = 1,300,368,615,972.85
  5. Step 5: Solve for x
    x = 1,300,368,615,972.85/1,299,206.90
  6. Step 6: Final answer
    x = 1,000,894.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.