Home / 942,721.88-1,300,983.57-513,029.72

Finding the Fourth Proportional to 942,721.88, 1,300,983.57 and 513,029.72

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Solution

The fourth proportional to 942,721.88, 1,300,983.57 and 513,029.72 is: 707,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,721.88 : 1,300,983.57 = 513,029.72 : x
  2. Step 2: Convert to fraction form
    942,721.88/1,300,983.57 = 513,029.72/x
  3. Step 3: Cross multiply
    942,721.88x = 1,300,983.57 × 513,029.72
  4. Step 4: Simplify right side
    942,721.88x = 667,443,236,641.70
  5. Step 5: Solve for x
    x = 667,443,236,641.70/942,721.88
  6. Step 6: Final answer
    x = 707,995.91

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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.