Home / 527,352.12-727,702.08-309,537.25

Finding the Fourth Proportional to 527,352.12, 727,702.08 and 309,537.25

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Solution

The fourth proportional to 527,352.12, 727,702.08 and 309,537.25 is: 427,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,352.12 : 727,702.08 = 309,537.25 : x
  2. Step 2: Convert to fraction form
    527,352.12/727,702.08 = 309,537.25/x
  3. Step 3: Cross multiply
    527,352.12x = 727,702.08 × 309,537.25
  4. Step 4: Simplify right side
    527,352.12x = 225,250,897,682.46
  5. Step 5: Solve for x
    x = 225,250,897,682.46/527,352.12
  6. Step 6: Final answer
    x = 427,135.66

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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.