Home / 2,642,138.60-3,963,207.90-1,728,847.40

Finding the Fourth Proportional to 2,642,138.60, 3,963,207.90 and 1,728,847.40

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Solution

The fourth proportional to 2,642,138.60, 3,963,207.90 and 1,728,847.40 is: 2,593,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,138.60 : 3,963,207.90 = 1,728,847.40 : x
  2. Step 2: Convert to fraction form
    2,642,138.60/3,963,207.90 = 1,728,847.40/x
  3. Step 3: Cross multiply
    2,642,138.60x = 3,963,207.90 × 1,728,847.40
  4. Step 4: Simplify right side
    2,642,138.60x = 6,851,781,673,574.46
  5. Step 5: Solve for x
    x = 6,851,781,673,574.46/2,642,138.60
  6. Step 6: Final answer
    x = 2,593,271.10

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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.