Home / 860,500.39-1,290,535.98-253,167.84

Finding the Fourth Proportional to 860,500.39, 1,290,535.98 and 253,167.84

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Solution

The fourth proportional to 860,500.39, 1,290,535.98 and 253,167.84 is: 379,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,500.39 : 1,290,535.98 = 253,167.84 : x
  2. Step 2: Convert to fraction form
    860,500.39/1,290,535.98 = 253,167.84/x
  3. Step 3: Cross multiply
    860,500.39x = 1,290,535.98 × 253,167.84
  4. Step 4: Simplify right side
    860,500.39x = 326,722,211,986.75
  5. Step 5: Solve for x
    x = 326,722,211,986.75/860,500.39
  6. Step 6: Final answer
    x = 379,688.63

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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.