Home / 449,588.13-671,102.36-392,836.47

Finding the Fourth Proportional to 449,588.13, 671,102.36 and 392,836.47

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Solution

The fourth proportional to 449,588.13, 671,102.36 and 392,836.47 is: 586,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,588.13 : 671,102.36 = 392,836.47 : x
  2. Step 2: Convert to fraction form
    449,588.13/671,102.36 = 392,836.47/x
  3. Step 3: Cross multiply
    449,588.13x = 671,102.36 × 392,836.47
  4. Step 4: Simplify right side
    449,588.13x = 263,633,480,146.89
  5. Step 5: Solve for x
    x = 263,633,480,146.89/449,588.13
  6. Step 6: Final answer
    x = 586,388.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.