Home / 858,263.43-1,288,242.61-644,287.35

Finding the Fourth Proportional to 858,263.43, 1,288,242.61 and 644,287.35

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Solution

The fourth proportional to 858,263.43, 1,288,242.61 and 644,287.35 is: 967,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,263.43 : 1,288,242.61 = 644,287.35 : x
  2. Step 2: Convert to fraction form
    858,263.43/1,288,242.61 = 644,287.35/x
  3. Step 3: Cross multiply
    858,263.43x = 1,288,242.61 × 644,287.35
  4. Step 4: Simplify right side
    858,263.43x = 829,998,415,743.27
  5. Step 5: Solve for x
    x = 829,998,415,743.27/858,263.43
  6. Step 6: Final answer
    x = 967,067.20

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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.