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Finding the Fourth Proportional to 503,890.80, 754,961.40 and 326,306.40

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Solution

The fourth proportional to 503,890.80, 754,961.40 and 326,306.40 is: 488,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,890.80 : 754,961.40 = 326,306.40 : x
  2. Step 2: Convert to fraction form
    503,890.80/754,961.40 = 326,306.40/x
  3. Step 3: Cross multiply
    503,890.80x = 754,961.40 × 326,306.40
  4. Step 4: Simplify right side
    503,890.80x = 246,348,736,572.96
  5. Step 5: Solve for x
    x = 246,348,736,572.96/503,890.80
  6. Step 6: Final answer
    x = 488,893.10

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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.