Home / 788,521.17-1,182,764.78-219,887.13

Finding the Fourth Proportional to 788,521.17, 1,182,764.78 and 219,887.13

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Solution

The fourth proportional to 788,521.17, 1,182,764.78 and 219,887.13 is: 329,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,521.17 : 1,182,764.78 = 219,887.13 : x
  2. Step 2: Convert to fraction form
    788,521.17/1,182,764.78 = 219,887.13/x
  3. Step 3: Cross multiply
    788,521.17x = 1,182,764.78 × 219,887.13
  4. Step 4: Simplify right side
    788,521.17x = 260,074,751,839.85
  5. Step 5: Solve for x
    x = 260,074,751,839.85/788,521.17
  6. Step 6: Final answer
    x = 329,825.96

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1.5x scale

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.