Home / 859,868.25-1,289,658.39-260,686.14

Finding the Fourth Proportional to 859,868.25, 1,289,658.39 and 260,686.14

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Solution

The fourth proportional to 859,868.25, 1,289,658.39 and 260,686.14 is: 390,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,868.25 : 1,289,658.39 = 260,686.14 : x
  2. Step 2: Convert to fraction form
    859,868.25/1,289,658.39 = 260,686.14/x
  3. Step 3: Cross multiply
    859,868.25x = 1,289,658.39 × 260,686.14
  4. Step 4: Simplify right side
    859,868.25x = 336,196,067,607.72
  5. Step 5: Solve for x
    x = 336,196,067,607.72/859,868.25
  6. Step 6: Final answer
    x = 390,985.56

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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.