Home / 1,188,470.20-1,781,150.10-477,916.60

Finding the Fourth Proportional to 1,188,470.20, 1,781,150.10 and 477,916.60

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Solution

The fourth proportional to 1,188,470.20, 1,781,150.10 and 477,916.60 is: 716,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,470.20 : 1,781,150.10 = 477,916.60 : x
  2. Step 2: Convert to fraction form
    1,188,470.20/1,781,150.10 = 477,916.60/x
  3. Step 3: Cross multiply
    1,188,470.20x = 1,781,150.10 × 477,916.60
  4. Step 4: Simplify right side
    1,188,470.20x = 851,241,199,881.66
  5. Step 5: Solve for x
    x = 851,241,199,881.66/1,188,470.20
  6. Step 6: Final answer
    x = 716,249.51

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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.