Home / 916,822.20-1,375,233.30-664,879.80

Finding the Fourth Proportional to 916,822.20, 1,375,233.30 and 664,879.80

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Solution

The fourth proportional to 916,822.20, 1,375,233.30 and 664,879.80 is: 997,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,822.20 : 1,375,233.30 = 664,879.80 : x
  2. Step 2: Convert to fraction form
    916,822.20/1,375,233.30 = 664,879.80/x
  3. Step 3: Cross multiply
    916,822.20x = 1,375,233.30 × 664,879.80
  4. Step 4: Simplify right side
    916,822.20x = 914,364,841,457.34
  5. Step 5: Solve for x
    x = 914,364,841,457.34/916,822.20
  6. Step 6: Final answer
    x = 997,319.70

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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.