Home / 860,817.76-1,291,232.88-299,850.40

Finding the Fourth Proportional to 860,817.76, 1,291,232.88 and 299,850.40

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Solution

The fourth proportional to 860,817.76, 1,291,232.88 and 299,850.40 is: 449,777.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,817.76 : 1,291,232.88 = 299,850.40 : x
  2. Step 2: Convert to fraction form
    860,817.76/1,291,232.88 = 299,850.40/x
  3. Step 3: Cross multiply
    860,817.76x = 1,291,232.88 × 299,850.40
  4. Step 4: Simplify right side
    860,817.76x = 387,176,695,561.15
  5. Step 5: Solve for x
    x = 387,176,695,561.15/860,817.76
  6. Step 6: Final answer
    x = 449,777.77

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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.