Home / 876,859.20-1,315,288.80-823,715.10

Finding the Fourth Proportional to 876,859.20, 1,315,288.80 and 823,715.10

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Solution

The fourth proportional to 876,859.20, 1,315,288.80 and 823,715.10 is: 1,235,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,859.20 : 1,315,288.80 = 823,715.10 : x
  2. Step 2: Convert to fraction form
    876,859.20/1,315,288.80 = 823,715.10/x
  3. Step 3: Cross multiply
    876,859.20x = 1,315,288.80 × 823,715.10
  4. Step 4: Simplify right side
    876,859.20x = 1,083,423,245,420.88
  5. Step 5: Solve for x
    x = 1,083,423,245,420.88/876,859.20
  6. Step 6: Final answer
    x = 1,235,572.65

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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.