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Finding the Fourth Proportional to 437,612.70, 655,106.85 and 260,028.30

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Solution

The fourth proportional to 437,612.70, 655,106.85 and 260,028.30 is: 389,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,612.70 : 655,106.85 = 260,028.30 : x
  2. Step 2: Convert to fraction form
    437,612.70/655,106.85 = 260,028.30/x
  3. Step 3: Cross multiply
    437,612.70x = 655,106.85 × 260,028.30
  4. Step 4: Simplify right side
    437,612.70x = 170,346,320,523.86
  5. Step 5: Solve for x
    x = 170,346,320,523.86/437,612.70
  6. Step 6: Final answer
    x = 389,262.74

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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.