Home / 860,294.40-1,290,704.04-439,865.52

Finding the Fourth Proportional to 860,294.40, 1,290,704.04 and 439,865.52

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Solution

The fourth proportional to 860,294.40, 1,290,704.04 and 439,865.52 is: 659,932.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,294.40 : 1,290,704.04 = 439,865.52 : x
  2. Step 2: Convert to fraction form
    860,294.40/1,290,704.04 = 439,865.52/x
  3. Step 3: Cross multiply
    860,294.40x = 1,290,704.04 × 439,865.52
  4. Step 4: Simplify right side
    860,294.40x = 567,736,203,720.70
  5. Step 5: Solve for x
    x = 567,736,203,720.70/860,294.40
  6. Step 6: Final answer
    x = 659,932.46

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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.