Home / 860,469.40-1,291,287.30-560,218.60

Finding the Fourth Proportional to 860,469.40, 1,291,287.30 and 560,218.60

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Solution

The fourth proportional to 860,469.40, 1,291,287.30 and 560,218.60 is: 840,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,469.40 : 1,291,287.30 = 560,218.60 : x
  2. Step 2: Convert to fraction form
    860,469.40/1,291,287.30 = 560,218.60/x
  3. Step 3: Cross multiply
    860,469.40x = 1,291,287.30 × 560,218.60
  4. Step 4: Simplify right side
    860,469.40x = 723,403,163,403.78
  5. Step 5: Solve for x
    x = 723,403,163,403.78/860,469.40
  6. Step 6: Final answer
    x = 840,707.60

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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.