Home / 763,422.84-1,144,959.30-342,819

Finding the Fourth Proportional to 763,422.84, 1,144,959.30 and 342,819

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Solution

The fourth proportional to 763,422.84, 1,144,959.30 and 342,819 is: 514,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,422.84 : 1,144,959.30 = 342,819 : x
  2. Step 2: Convert to fraction form
    763,422.84/1,144,959.30 = 342,819/x
  3. Step 3: Cross multiply
    763,422.84x = 1,144,959.30 × 342,819
  4. Step 4: Simplify right side
    763,422.84x = 392,513,802,266.70
  5. Step 5: Solve for x
    x = 392,513,802,266.70/763,422.84
  6. Step 6: Final answer
    x = 514,149.93

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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.