Home / 527,156.36-727,476.22-285,439.06

Finding the Fourth Proportional to 527,156.36, 727,476.22 and 285,439.06

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Solution

The fourth proportional to 527,156.36, 727,476.22 and 285,439.06 is: 393,906.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,156.36 : 727,476.22 = 285,439.06 : x
  2. Step 2: Convert to fraction form
    527,156.36/727,476.22 = 285,439.06/x
  3. Step 3: Cross multiply
    527,156.36x = 727,476.22 × 285,439.06
  4. Step 4: Simplify right side
    527,156.36x = 207,650,128,409.15
  5. Step 5: Solve for x
    x = 207,650,128,409.15/527,156.36
  6. Step 6: Final answer
    x = 393,906.14

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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.