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Finding the Fourth Proportional to 529,141.26, 730,228.53 and 287,437.67

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Solution

The fourth proportional to 529,141.26, 730,228.53 and 287,437.67 is: 396,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,141.26 : 730,228.53 = 287,437.67 : x
  2. Step 2: Convert to fraction form
    529,141.26/730,228.53 = 287,437.67/x
  3. Step 3: Cross multiply
    529,141.26x = 730,228.53 × 287,437.67
  4. Step 4: Simplify right side
    529,141.26x = 209,895,187,230.73
  5. Step 5: Solve for x
    x = 209,895,187,230.73/529,141.26
  6. Step 6: Final answer
    x = 396,671.37

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1.5x scale

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.