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Finding the Fourth Proportional to 574,650.40, 860,809.20 and 325,040.80

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Solution

The fourth proportional to 574,650.40, 860,809.20 and 325,040.80 is: 486,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,650.40 : 860,809.20 = 325,040.80 : x
  2. Step 2: Convert to fraction form
    574,650.40/860,809.20 = 325,040.80/x
  3. Step 3: Cross multiply
    574,650.40x = 860,809.20 × 325,040.80
  4. Step 4: Simplify right side
    574,650.40x = 279,798,111,015.36
  5. Step 5: Solve for x
    x = 279,798,111,015.36/574,650.40
  6. Step 6: Final answer
    x = 486,901.45

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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.