Home / 527,022.18-727,290.42-285,304.56

Finding the Fourth Proportional to 527,022.18, 727,290.42 and 285,304.56

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Solution

The fourth proportional to 527,022.18, 727,290.42 and 285,304.56 is: 393,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,022.18 : 727,290.42 = 285,304.56 : x
  2. Step 2: Convert to fraction form
    527,022.18/727,290.42 = 285,304.56/x
  3. Step 3: Cross multiply
    527,022.18x = 727,290.42 × 285,304.56
  4. Step 4: Simplify right side
    527,022.18x = 207,499,273,270.32
  5. Step 5: Solve for x
    x = 207,499,273,270.32/527,022.18
  6. Step 6: Final answer
    x = 393,720.19

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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.