Home / 942,721.63-1,300,983.23-513,029.47

Finding the Fourth Proportional to 942,721.63, 1,300,983.23 and 513,029.47

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Solution

The fourth proportional to 942,721.63, 1,300,983.23 and 513,029.47 is: 707,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,721.63 : 1,300,983.23 = 513,029.47 : x
  2. Step 2: Convert to fraction form
    942,721.63/1,300,983.23 = 513,029.47/x
  3. Step 3: Cross multiply
    942,721.63x = 1,300,983.23 × 513,029.47
  4. Step 4: Simplify right side
    942,721.63x = 667,442,736,965.79
  5. Step 5: Solve for x
    x = 667,442,736,965.79/942,721.63
  6. Step 6: Final answer
    x = 707,995.57

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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.