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Finding the Fourth Proportional to 524,279.70, 787,010.85 and 347,132.70

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Solution

The fourth proportional to 524,279.70, 787,010.85 and 347,132.70 is: 521,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,279.70 : 787,010.85 = 347,132.70 : x
  2. Step 2: Convert to fraction form
    524,279.70/787,010.85 = 347,132.70/x
  3. Step 3: Cross multiply
    524,279.70x = 787,010.85 × 347,132.70
  4. Step 4: Simplify right side
    524,279.70x = 273,197,201,289.80
  5. Step 5: Solve for x
    x = 273,197,201,289.80/524,279.70
  6. Step 6: Final answer
    x = 521,090.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.