Home / 1,215,089.68-1,676,837.83-671,214.20

Finding the Fourth Proportional to 1,215,089.68, 1,676,837.83 and 671,214.20

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Solution

The fourth proportional to 1,215,089.68, 1,676,837.83 and 671,214.20 is: 926,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,089.68 : 1,676,837.83 = 671,214.20 : x
  2. Step 2: Convert to fraction form
    1,215,089.68/1,676,837.83 = 671,214.20/x
  3. Step 3: Cross multiply
    1,215,089.68x = 1,676,837.83 × 671,214.20
  4. Step 4: Simplify right side
    1,215,089.68x = 1,125,517,362,593.19
  5. Step 5: Solve for x
    x = 1,125,517,362,593.19/1,215,089.68
  6. Step 6: Final answer
    x = 926,283.37

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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.