Home / 811,752.80-1,215,296.40-496,824.80

Finding the Fourth Proportional to 811,752.80, 1,215,296.40 and 496,824.80

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Solution

The fourth proportional to 811,752.80, 1,215,296.40 and 496,824.80 is: 743,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,752.80 : 1,215,296.40 = 496,824.80 : x
  2. Step 2: Convert to fraction form
    811,752.80/1,215,296.40 = 496,824.80/x
  3. Step 3: Cross multiply
    811,752.80x = 1,215,296.40 × 496,824.80
  4. Step 4: Simplify right side
    811,752.80x = 603,789,390,870.72
  5. Step 5: Solve for x
    x = 603,789,390,870.72/811,752.80
  6. Step 6: Final answer
    x = 743,809.43

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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.