Home / 760,849.83-1,049,959.80-421,310.79

Finding the Fourth Proportional to 760,849.83, 1,049,959.80 and 421,310.79

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Solution

The fourth proportional to 760,849.83, 1,049,959.80 and 421,310.79 is: 581,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,849.83 : 1,049,959.80 = 421,310.79 : x
  2. Step 2: Convert to fraction form
    760,849.83/1,049,959.80 = 421,310.79/x
  3. Step 3: Cross multiply
    760,849.83x = 1,049,959.80 × 421,310.79
  4. Step 4: Simplify right side
    760,849.83x = 442,359,392,806.24
  5. Step 5: Solve for x
    x = 442,359,392,806.24/760,849.83
  6. Step 6: Final answer
    x = 581,401.71

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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.