Home / 860,191.60-1,289,980.20-299,244.40

Finding the Fourth Proportional to 860,191.60, 1,289,980.20 and 299,244.40

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Solution

The fourth proportional to 860,191.60, 1,289,980.20 and 299,244.40 is: 448,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,191.60 : 1,289,980.20 = 299,244.40 : x
  2. Step 2: Convert to fraction form
    860,191.60/1,289,980.20 = 299,244.40/x
  3. Step 3: Cross multiply
    860,191.60x = 1,289,980.20 × 299,244.40
  4. Step 4: Simplify right side
    860,191.60x = 386,019,350,960.88
  5. Step 5: Solve for x
    x = 386,019,350,960.88/860,191.60
  6. Step 6: Final answer
    x = 448,759.73

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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.