Home / 849,680.94-1,172,422.49-487,038.06

Finding the Fourth Proportional to 849,680.94, 1,172,422.49 and 487,038.06

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Solution

The fourth proportional to 849,680.94, 1,172,422.49 and 487,038.06 is: 672,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,680.94 : 1,172,422.49 = 487,038.06 : x
  2. Step 2: Convert to fraction form
    849,680.94/1,172,422.49 = 487,038.06/x
  3. Step 3: Cross multiply
    849,680.94x = 1,172,422.49 × 487,038.06
  4. Step 4: Simplify right side
    849,680.94x = 571,014,375,029.97
  5. Step 5: Solve for x
    x = 571,014,375,029.97/849,680.94
  6. Step 6: Final answer
    x = 672,033.88

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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.