Home / 862,211.91-1,189,873.89-480,245.07

Finding the Fourth Proportional to 862,211.91, 1,189,873.89 and 480,245.07

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Solution

The fourth proportional to 862,211.91, 1,189,873.89 and 480,245.07 is: 662,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,211.91 : 1,189,873.89 = 480,245.07 : x
  2. Step 2: Convert to fraction form
    862,211.91/1,189,873.89 = 480,245.07/x
  3. Step 3: Cross multiply
    862,211.91x = 1,189,873.89 × 480,245.07
  4. Step 4: Simplify right side
    862,211.91x = 571,431,069,594.22
  5. Step 5: Solve for x
    x = 571,431,069,594.22/862,211.91
  6. Step 6: Final answer
    x = 662,750.15

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1.5x scale

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.