Home / 812,144.80-1,215,884.40-497,216.80

Finding the Fourth Proportional to 812,144.80, 1,215,884.40 and 497,216.80

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Solution

The fourth proportional to 812,144.80, 1,215,884.40 and 497,216.80 is: 744,397.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,144.80 : 1,215,884.40 = 497,216.80 : x
  2. Step 2: Convert to fraction form
    812,144.80/1,215,884.40 = 497,216.80/x
  3. Step 3: Cross multiply
    812,144.80x = 1,215,884.40 × 497,216.80
  4. Step 4: Simplify right side
    812,144.80x = 604,558,150,537.92
  5. Step 5: Solve for x
    x = 604,558,150,537.92/812,144.80
  6. Step 6: Final answer
    x = 744,397.00

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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.