Home / 449,632.36-674,781.18-212,976.28

Finding the Fourth Proportional to 449,632.36, 674,781.18 and 212,976.28

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Solution

The fourth proportional to 449,632.36, 674,781.18 and 212,976.28 is: 319,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,632.36 : 674,781.18 = 212,976.28 : x
  2. Step 2: Convert to fraction form
    449,632.36/674,781.18 = 212,976.28/x
  3. Step 3: Cross multiply
    449,632.36x = 674,781.18 × 212,976.28
  4. Step 4: Simplify right side
    449,632.36x = 143,712,385,530.41
  5. Step 5: Solve for x
    x = 143,712,385,530.41/449,632.36
  6. Step 6: Final answer
    x = 319,621.98

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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.