Home / 859,867.25-1,289,656.89-260,685.14

Finding the Fourth Proportional to 859,867.25, 1,289,656.89 and 260,685.14

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Solution

The fourth proportional to 859,867.25, 1,289,656.89 and 260,685.14 is: 390,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,867.25 : 1,289,656.89 = 260,685.14 : x
  2. Step 2: Convert to fraction form
    859,867.25/1,289,656.89 = 260,685.14/x
  3. Step 3: Cross multiply
    859,867.25x = 1,289,656.89 × 260,685.14
  4. Step 4: Simplify right side
    859,867.25x = 336,194,380,473.33
  5. Step 5: Solve for x
    x = 336,194,380,473.33/859,867.25
  6. Step 6: Final answer
    x = 390,984.05

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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.