Home / 529,021.27-730,049.18-287,303.91

Finding the Fourth Proportional to 529,021.27, 730,049.18 and 287,303.91

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Solution

The fourth proportional to 529,021.27, 730,049.18 and 287,303.91 is: 396,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,021.27 : 730,049.18 = 287,303.91 : x
  2. Step 2: Convert to fraction form
    529,021.27/730,049.18 = 287,303.91/x
  3. Step 3: Cross multiply
    529,021.27x = 730,049.18 × 287,303.91
  4. Step 4: Simplify right side
    529,021.27x = 209,745,983,906.29
  5. Step 5: Solve for x
    x = 209,745,983,906.29/529,021.27
  6. Step 6: Final answer
    x = 396,479.30

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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.