Home / 515,106.20-710,869.54-285,648.04

Finding the Fourth Proportional to 515,106.20, 710,869.54 and 285,648.04

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Solution

The fourth proportional to 515,106.20, 710,869.54 and 285,648.04 is: 394,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,106.20 : 710,869.54 = 285,648.04 : x
  2. Step 2: Convert to fraction form
    515,106.20/710,869.54 = 285,648.04/x
  3. Step 3: Cross multiply
    515,106.20x = 710,869.54 × 285,648.04
  4. Step 4: Simplify right side
    515,106.20x = 203,058,490,796.70
  5. Step 5: Solve for x
    x = 203,058,490,796.70/515,106.20
  6. Step 6: Final answer
    x = 394,207.04

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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.