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Finding the Fourth Proportional to 504,010.30, 755,140.65 and 326,425.90

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Solution

The fourth proportional to 504,010.30, 755,140.65 and 326,425.90 is: 489,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,010.30 : 755,140.65 = 326,425.90 : x
  2. Step 2: Convert to fraction form
    504,010.30/755,140.65 = 326,425.90/x
  3. Step 3: Cross multiply
    504,010.30x = 755,140.65 × 326,425.90
  4. Step 4: Simplify right side
    504,010.30x = 246,497,466,302.84
  5. Step 5: Solve for x
    x = 246,497,466,302.84/504,010.30
  6. Step 6: Final answer
    x = 489,072.28

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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.