Home / 571,918.22-857,319.51-272,318.30

Finding the Fourth Proportional to 571,918.22, 857,319.51 and 272,318.30

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Solution

The fourth proportional to 571,918.22, 857,319.51 and 272,318.30 is: 408,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,918.22 : 857,319.51 = 272,318.30 : x
  2. Step 2: Convert to fraction form
    571,918.22/857,319.51 = 272,318.30/x
  3. Step 3: Cross multiply
    571,918.22x = 857,319.51 × 272,318.30
  4. Step 4: Simplify right side
    571,918.22x = 233,463,791,520.03
  5. Step 5: Solve for x
    x = 233,463,791,520.03/571,918.22
  6. Step 6: Final answer
    x = 408,211.84

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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.