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Finding the Fourth Proportional to 529,182.37, 730,276.86 and 287,466.90

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Solution

The fourth proportional to 529,182.37, 730,276.86 and 287,466.90 is: 396,707.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,182.37 : 730,276.86 = 287,466.90 : x
  2. Step 2: Convert to fraction form
    529,182.37/730,276.86 = 287,466.90/x
  3. Step 3: Cross multiply
    529,182.37x = 730,276.86 × 287,466.90
  4. Step 4: Simplify right side
    529,182.37x = 209,930,425,085.93
  5. Step 5: Solve for x
    x = 209,930,425,085.93/529,182.37
  6. Step 6: Final answer
    x = 396,707.14

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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.