Home / 858,751.20-1,288,126.80-504,457.20

Finding the Fourth Proportional to 858,751.20, 1,288,126.80 and 504,457.20

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Solution

The fourth proportional to 858,751.20, 1,288,126.80 and 504,457.20 is: 756,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,751.20 : 1,288,126.80 = 504,457.20 : x
  2. Step 2: Convert to fraction form
    858,751.20/1,288,126.80 = 504,457.20/x
  3. Step 3: Cross multiply
    858,751.20x = 1,288,126.80 × 504,457.20
  4. Step 4: Simplify right side
    858,751.20x = 649,804,838,772.96
  5. Step 5: Solve for x
    x = 649,804,838,772.96/858,751.20
  6. Step 6: Final answer
    x = 756,685.80

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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.