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Finding the Fourth Proportional to 529,197.87, 730,298.25 and 287,482.41

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Solution

The fourth proportional to 529,197.87, 730,298.25 and 287,482.41 is: 396,728.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,197.87 : 730,298.25 = 287,482.41 : x
  2. Step 2: Convert to fraction form
    529,197.87/730,298.25 = 287,482.41/x
  3. Step 3: Cross multiply
    529,197.87x = 730,298.25 × 287,482.41
  4. Step 4: Simplify right side
    529,197.87x = 209,947,900,928.78
  5. Step 5: Solve for x
    x = 209,947,900,928.78/529,197.87
  6. Step 6: Final answer
    x = 396,728.54

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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.