Home / 386,004.60-579,643.56-260,451.36

Finding the Fourth Proportional to 386,004.60, 579,643.56 and 260,451.36

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Solution

The fourth proportional to 386,004.60, 579,643.56 and 260,451.36 is: 391,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,004.60 : 579,643.56 = 260,451.36 : x
  2. Step 2: Convert to fraction form
    386,004.60/579,643.56 = 260,451.36/x
  3. Step 3: Cross multiply
    386,004.60x = 579,643.56 × 260,451.36
  4. Step 4: Simplify right side
    386,004.60x = 150,968,953,517.24
  5. Step 5: Solve for x
    x = 150,968,953,517.24/386,004.60
  6. Step 6: Final answer
    x = 391,106.62

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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.