Home / 529,949.88-731,340.24-288,237.72

Finding the Fourth Proportional to 529,949.88, 731,340.24 and 288,237.72

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Solution

The fourth proportional to 529,949.88, 731,340.24 and 288,237.72 is: 397,773.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,949.88 : 731,340.24 = 288,237.72 : x
  2. Step 2: Convert to fraction form
    529,949.88/731,340.24 = 288,237.72/x
  3. Step 3: Cross multiply
    529,949.88x = 731,340.24 × 288,237.72
  4. Step 4: Simplify right side
    529,949.88x = 210,799,843,321.85
  5. Step 5: Solve for x
    x = 210,799,843,321.85/529,949.88
  6. Step 6: Final answer
    x = 397,773.17

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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.