Home / 859,357.73-1,288,423.41-403,694.66

Finding the Fourth Proportional to 859,357.73, 1,288,423.41 and 403,694.66

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Solution

The fourth proportional to 859,357.73, 1,288,423.41 and 403,694.66 is: 605,253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,357.73 : 1,288,423.41 = 403,694.66 : x
  2. Step 2: Convert to fraction form
    859,357.73/1,288,423.41 = 403,694.66/x
  3. Step 3: Cross multiply
    859,357.73x = 1,288,423.41 × 403,694.66
  4. Step 4: Simplify right side
    859,357.73x = 520,129,643,993.87
  5. Step 5: Solve for x
    x = 520,129,643,993.87/859,357.73
  6. Step 6: Final answer
    x = 605,253.93

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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.