Home / 529,225.20-730,327.86-287,505.84

Finding the Fourth Proportional to 529,225.20, 730,327.86 and 287,505.84

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Solution

The fourth proportional to 529,225.20, 730,327.86 and 287,505.84 is: 396,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,225.20 : 730,327.86 = 287,505.84 : x
  2. Step 2: Convert to fraction form
    529,225.20/730,327.86 = 287,505.84/x
  3. Step 3: Cross multiply
    529,225.20x = 730,327.86 × 287,505.84
  4. Step 4: Simplify right side
    529,225.20x = 209,973,524,864.70
  5. Step 5: Solve for x
    x = 209,973,524,864.70/529,225.20
  6. Step 6: Final answer
    x = 396,756.48

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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.