Home / 400,654.11-552,881.63-219,331.29

Finding the Fourth Proportional to 400,654.11, 552,881.63 and 219,331.29

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Solution

The fourth proportional to 400,654.11, 552,881.63 and 219,331.29 is: 302,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,654.11 : 552,881.63 = 219,331.29 : x
  2. Step 2: Convert to fraction form
    400,654.11/552,881.63 = 219,331.29/x
  3. Step 3: Cross multiply
    400,654.11x = 552,881.63 × 219,331.29
  4. Step 4: Simplify right side
    400,654.11x = 121,264,240,028.55
  5. Step 5: Solve for x
    x = 121,264,240,028.55/400,654.11
  6. Step 6: Final answer
    x = 302,665.66

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1.5x scale

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.