Home / 1,190,003.20-1,642,232.93-646,161.91

Finding the Fourth Proportional to 1,190,003.20, 1,642,232.93 and 646,161.91

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Solution

The fourth proportional to 1,190,003.20, 1,642,232.93 and 646,161.91 is: 891,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,003.20 : 1,642,232.93 = 646,161.91 : x
  2. Step 2: Convert to fraction form
    1,190,003.20/1,642,232.93 = 646,161.91/x
  3. Step 3: Cross multiply
    1,190,003.20x = 1,642,232.93 × 646,161.91
  4. Step 4: Simplify right side
    1,190,003.20x = 1,061,148,363,011.97
  5. Step 5: Solve for x
    x = 1,061,148,363,011.97/1,190,003.20
  6. Step 6: Final answer
    x = 891,718.92

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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.