Home / 3,181,643.28-4,390,695.72-2,940,548.40

Finding the Fourth Proportional to 3,181,643.28, 4,390,695.72 and 2,940,548.40

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Solution

The fourth proportional to 3,181,643.28, 4,390,695.72 and 2,940,548.40 is: 4,057,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181,643.28 : 4,390,695.72 = 2,940,548.40 : x
  2. Step 2: Convert to fraction form
    3,181,643.28/4,390,695.72 = 2,940,548.40/x
  3. Step 3: Cross multiply
    3,181,643.28x = 4,390,695.72 × 2,940,548.40
  4. Step 4: Simplify right side
    3,181,643.28x = 12,911,053,274,332.85
  5. Step 5: Solve for x
    x = 12,911,053,274,332.85/3,181,643.28
  6. Step 6: Final answer
    x = 4,057,982.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.