Home / 515,268.20-711,070.41-314,064.20

Finding the Fourth Proportional to 515,268.20, 711,070.41 and 314,064.20

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Solution

The fourth proportional to 515,268.20, 711,070.41 and 314,064.20 is: 433,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,268.20 : 711,070.41 = 314,064.20 : x
  2. Step 2: Convert to fraction form
    515,268.20/711,070.41 = 314,064.20/x
  3. Step 3: Cross multiply
    515,268.20x = 711,070.41 × 314,064.20
  4. Step 4: Simplify right side
    515,268.20x = 223,321,755,904.97
  5. Step 5: Solve for x
    x = 223,321,755,904.97/515,268.20
  6. Step 6: Final answer
    x = 433,408.77

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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.