Home / 858,900.66-1,288,342.74-522,034.26

Finding the Fourth Proportional to 858,900.66, 1,288,342.74 and 522,034.26

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Solution

The fourth proportional to 858,900.66, 1,288,342.74 and 522,034.26 is: 783,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,900.66 : 1,288,342.74 = 522,034.26 : x
  2. Step 2: Convert to fraction form
    858,900.66/1,288,342.74 = 522,034.26/x
  3. Step 3: Cross multiply
    858,900.66x = 1,288,342.74 × 522,034.26
  4. Step 4: Simplify right side
    858,900.66x = 672,559,048,902.27
  5. Step 5: Solve for x
    x = 672,559,048,902.27/858,900.66
  6. Step 6: Final answer
    x = 783,046.38

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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.