Home / 529,748.55-731,067.75-288,047.70

Finding the Fourth Proportional to 529,748.55, 731,067.75 and 288,047.70

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Solution

The fourth proportional to 529,748.55, 731,067.75 and 288,047.70 is: 397,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,748.55 : 731,067.75 = 288,047.70 : x
  2. Step 2: Convert to fraction form
    529,748.55/731,067.75 = 288,047.70/x
  3. Step 3: Cross multiply
    529,748.55x = 731,067.75 × 288,047.70
  4. Step 4: Simplify right side
    529,748.55x = 210,582,383,931.68
  5. Step 5: Solve for x
    x = 210,582,383,931.68/529,748.55
  6. Step 6: Final answer
    x = 397,513.85

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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.