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Finding the Fourth Proportional to 504,004.80, 755,132.40 and 326,420.40

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Solution

The fourth proportional to 504,004.80, 755,132.40 and 326,420.40 is: 489,064.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,004.80 : 755,132.40 = 326,420.40 : x
  2. Step 2: Convert to fraction form
    504,004.80/755,132.40 = 326,420.40/x
  3. Step 3: Cross multiply
    504,004.80x = 755,132.40 × 326,420.40
  4. Step 4: Simplify right side
    504,004.80x = 246,490,620,060.96
  5. Step 5: Solve for x
    x = 246,490,620,060.96/504,004.80
  6. Step 6: Final answer
    x = 489,064.03

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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.