Home / 760,691.18-1,049,824.24-421,159.43

Finding the Fourth Proportional to 760,691.18, 1,049,824.24 and 421,159.43

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Solution

The fourth proportional to 760,691.18, 1,049,824.24 and 421,159.43 is: 581,238.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,691.18 : 1,049,824.24 = 421,159.43 : x
  2. Step 2: Convert to fraction form
    760,691.18/1,049,824.24 = 421,159.43/x
  3. Step 3: Cross multiply
    760,691.18x = 1,049,824.24 × 421,159.43
  4. Step 4: Simplify right side
    760,691.18x = 442,143,372,216.56
  5. Step 5: Solve for x
    x = 442,143,372,216.56/760,691.18
  6. Step 6: Final answer
    x = 581,238.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.