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Finding the Fourth Proportional to 348,560.20, 522,062.70 and 286,352.20

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Solution

The fourth proportional to 348,560.20, 522,062.70 and 286,352.20 is: 428,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,560.20 : 522,062.70 = 286,352.20 : x
  2. Step 2: Convert to fraction form
    348,560.20/522,062.70 = 286,352.20/x
  3. Step 3: Cross multiply
    348,560.20x = 522,062.70 × 286,352.20
  4. Step 4: Simplify right side
    348,560.20x = 149,493,802,682.94
  5. Step 5: Solve for x
    x = 149,493,802,682.94/348,560.20
  6. Step 6: Final answer
    x = 428,889.48

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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.