Home / 527,972.56-728,616.47-298,564.18

Finding the Fourth Proportional to 527,972.56, 728,616.47 and 298,564.18

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Solution

The fourth proportional to 527,972.56, 728,616.47 and 298,564.18 is: 412,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,972.56 : 728,616.47 = 298,564.18 : x
  2. Step 2: Convert to fraction form
    527,972.56/728,616.47 = 298,564.18/x
  3. Step 3: Cross multiply
    527,972.56x = 728,616.47 × 298,564.18
  4. Step 4: Simplify right side
    527,972.56x = 217,538,775,585.68
  5. Step 5: Solve for x
    x = 217,538,775,585.68/527,972.56
  6. Step 6: Final answer
    x = 412,026.67

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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.