Home / 858,117.70-1,287,176.55-227,095.30

Finding the Fourth Proportional to 858,117.70, 1,287,176.55 and 227,095.30

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Solution

The fourth proportional to 858,117.70, 1,287,176.55 and 227,095.30 is: 340,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,117.70 : 1,287,176.55 = 227,095.30 : x
  2. Step 2: Convert to fraction form
    858,117.70/1,287,176.55 = 227,095.30/x
  3. Step 3: Cross multiply
    858,117.70x = 1,287,176.55 × 227,095.30
  4. Step 4: Simplify right side
    858,117.70x = 292,311,744,775.22
  5. Step 5: Solve for x
    x = 292,311,744,775.22/858,117.70
  6. Step 6: Final answer
    x = 340,642.95

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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.