Home / 860,474.40-1,291,294.80-560,223.60

Finding the Fourth Proportional to 860,474.40, 1,291,294.80 and 560,223.60

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Solution

The fourth proportional to 860,474.40, 1,291,294.80 and 560,223.60 is: 840,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,474.40 : 1,291,294.80 = 560,223.60 : x
  2. Step 2: Convert to fraction form
    860,474.40/1,291,294.80 = 560,223.60/x
  3. Step 3: Cross multiply
    860,474.40x = 1,291,294.80 × 560,223.60
  4. Step 4: Simplify right side
    860,474.40x = 723,413,821,517.28
  5. Step 5: Solve for x
    x = 723,413,821,517.28/860,474.40
  6. Step 6: Final answer
    x = 840,715.10

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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.