Home / 2,155,760.81-3,233,089.45-639,089.08

Finding the Fourth Proportional to 2,155,760.81, 3,233,089.45 and 639,089.08

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Solution

The fourth proportional to 2,155,760.81, 3,233,089.45 and 639,089.08 is: 958,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,760.81 : 3,233,089.45 = 639,089.08 : x
  2. Step 2: Convert to fraction form
    2,155,760.81/3,233,089.45 = 639,089.08/x
  3. Step 3: Cross multiply
    2,155,760.81x = 3,233,089.45 × 639,089.08
  4. Step 4: Simplify right side
    2,155,760.81x = 2,066,232,162,158.21
  5. Step 5: Solve for x
    x = 2,066,232,162,158.21/2,155,760.81
  6. Step 6: Final answer
    x = 958,470.05

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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.