Home / 859,343.38-1,289,080.68-260,354.15

Finding the Fourth Proportional to 859,343.38, 1,289,080.68 and 260,354.15

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Solution

The fourth proportional to 859,343.38, 1,289,080.68 and 260,354.15 is: 390,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,343.38 : 1,289,080.68 = 260,354.15 : x
  2. Step 2: Convert to fraction form
    859,343.38/1,289,080.68 = 260,354.15/x
  3. Step 3: Cross multiply
    859,343.38x = 1,289,080.68 × 260,354.15
  4. Step 4: Simplify right side
    859,343.38x = 335,617,502,135.14
  5. Step 5: Solve for x
    x = 335,617,502,135.14/859,343.38
  6. Step 6: Final answer
    x = 390,551.10

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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.