Home / 724,986.60-1,087,479.90-251,719.80

Finding the Fourth Proportional to 724,986.60, 1,087,479.90 and 251,719.80

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Solution

The fourth proportional to 724,986.60, 1,087,479.90 and 251,719.80 is: 377,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,986.60 : 1,087,479.90 = 251,719.80 : x
  2. Step 2: Convert to fraction form
    724,986.60/1,087,479.90 = 251,719.80/x
  3. Step 3: Cross multiply
    724,986.60x = 1,087,479.90 × 251,719.80
  4. Step 4: Simplify right side
    724,986.60x = 273,740,222,932.02
  5. Step 5: Solve for x
    x = 273,740,222,932.02/724,986.60
  6. Step 6: Final answer
    x = 377,579.70

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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.