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Finding the Fourth Proportional to 478,510.87, 660,344.46 and 263,650.87

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Solution

The fourth proportional to 478,510.87, 660,344.46 and 263,650.87 is: 363,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,510.87 : 660,344.46 = 263,650.87 : x
  2. Step 2: Convert to fraction form
    478,510.87/660,344.46 = 263,650.87/x
  3. Step 3: Cross multiply
    478,510.87x = 660,344.46 × 263,650.87
  4. Step 4: Simplify right side
    478,510.87x = 174,100,391,378.68
  5. Step 5: Solve for x
    x = 174,100,391,378.68/478,510.87
  6. Step 6: Final answer
    x = 363,837.90

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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.