Home / 1,190,007.20-1,642,238.46-646,165.90

Finding the Fourth Proportional to 1,190,007.20, 1,642,238.46 and 646,165.90

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Solution

The fourth proportional to 1,190,007.20, 1,642,238.46 and 646,165.90 is: 891,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,007.20 : 1,642,238.46 = 646,165.90 : x
  2. Step 2: Convert to fraction form
    1,190,007.20/1,642,238.46 = 646,165.90/x
  3. Step 3: Cross multiply
    1,190,007.20x = 1,642,238.46 × 646,165.90
  4. Step 4: Simplify right side
    1,190,007.20x = 1,061,158,492,520.51
  5. Step 5: Solve for x
    x = 1,061,158,492,520.51/1,190,007.20
  6. Step 6: Final answer
    x = 891,724.43

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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.