Home / 858,110.10-1,287,165.15-659,433.30

Finding the Fourth Proportional to 858,110.10, 1,287,165.15 and 659,433.30

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Solution

The fourth proportional to 858,110.10, 1,287,165.15 and 659,433.30 is: 989,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,110.10 : 1,287,165.15 = 659,433.30 : x
  2. Step 2: Convert to fraction form
    858,110.10/1,287,165.15 = 659,433.30/x
  3. Step 3: Cross multiply
    858,110.10x = 1,287,165.15 × 659,433.30
  4. Step 4: Simplify right side
    858,110.10x = 848,799,562,509.50
  5. Step 5: Solve for x
    x = 848,799,562,509.50/858,110.10
  6. Step 6: Final answer
    x = 989,149.95

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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.