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Finding the Fourth Proportional to 322,024.60, 483,123.30 and 287,205.40

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Solution

The fourth proportional to 322,024.60, 483,123.30 and 287,205.40 is: 430,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,024.60 : 483,123.30 = 287,205.40 : x
  2. Step 2: Convert to fraction form
    322,024.60/483,123.30 = 287,205.40/x
  3. Step 3: Cross multiply
    322,024.60x = 483,123.30 × 287,205.40
  4. Step 4: Simplify right side
    322,024.60x = 138,755,620,625.82
  5. Step 5: Solve for x
    x = 138,755,620,625.82/322,024.60
  6. Step 6: Final answer
    x = 430,885.16

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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.