Home / 785,115.60-1,178,062.20-448,414.80

Finding the Fourth Proportional to 785,115.60, 1,178,062.20 and 448,414.80

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Solution

The fourth proportional to 785,115.60, 1,178,062.20 and 448,414.80 is: 672,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,115.60 : 1,178,062.20 = 448,414.80 : x
  2. Step 2: Convert to fraction form
    785,115.60/1,178,062.20 = 448,414.80/x
  3. Step 3: Cross multiply
    785,115.60x = 1,178,062.20 × 448,414.80
  4. Step 4: Simplify right side
    785,115.60x = 528,260,525,800.56
  5. Step 5: Solve for x
    x = 528,260,525,800.56/785,115.60
  6. Step 6: Final answer
    x = 672,844.26

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1.5x scale

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.