Home / 869,150.92-1,199,483.70-487,177.78

Finding the Fourth Proportional to 869,150.92, 1,199,483.70 and 487,177.78

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Solution

The fourth proportional to 869,150.92, 1,199,483.70 and 487,177.78 is: 672,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,150.92 : 1,199,483.70 = 487,177.78 : x
  2. Step 2: Convert to fraction form
    869,150.92/1,199,483.70 = 487,177.78/x
  3. Step 3: Cross multiply
    869,150.92x = 1,199,483.70 × 487,177.78
  4. Step 4: Simplify right side
    869,150.92x = 584,361,806,112.19
  5. Step 5: Solve for x
    x = 584,361,806,112.19/869,150.92
  6. Step 6: Final answer
    x = 672,336.41

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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.