Home / 810,663.20-1,214,151.60-512,064.80

Finding the Fourth Proportional to 810,663.20, 1,214,151.60 and 512,064.80

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Solution

The fourth proportional to 810,663.20, 1,214,151.60 and 512,064.80 is: 766,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,663.20 : 1,214,151.60 = 512,064.80 : x
  2. Step 2: Convert to fraction form
    810,663.20/1,214,151.60 = 512,064.80/x
  3. Step 3: Cross multiply
    810,663.20x = 1,214,151.60 × 512,064.80
  4. Step 4: Simplify right side
    810,663.20x = 621,724,296,223.68
  5. Step 5: Solve for x
    x = 621,724,296,223.68/810,663.20
  6. Step 6: Final answer
    x = 766,932.92

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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.