Home / 860,228.40-1,290,605.10-439,799.52

Finding the Fourth Proportional to 860,228.40, 1,290,605.10 and 439,799.52

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Solution

The fourth proportional to 860,228.40, 1,290,605.10 and 439,799.52 is: 659,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,228.40 : 1,290,605.10 = 439,799.52 : x
  2. Step 2: Convert to fraction form
    860,228.40/1,290,605.10 = 439,799.52/x
  3. Step 3: Cross multiply
    860,228.40x = 1,290,605.10 × 439,799.52
  4. Step 4: Simplify right side
    860,228.40x = 567,607,503,489.55
  5. Step 5: Solve for x
    x = 567,607,503,489.55/860,228.40
  6. Step 6: Final answer
    x = 659,833.49

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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.