Home / 1,220,201.88-1,683,979.38-676,508.19

Finding the Fourth Proportional to 1,220,201.88, 1,683,979.38 and 676,508.19

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Solution

The fourth proportional to 1,220,201.88, 1,683,979.38 and 676,508.19 is: 933,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,201.88 : 1,683,979.38 = 676,508.19 : x
  2. Step 2: Convert to fraction form
    1,220,201.88/1,683,979.38 = 676,508.19/x
  3. Step 3: Cross multiply
    1,220,201.88x = 1,683,979.38 × 676,508.19
  4. Step 4: Simplify right side
    1,220,201.88x = 1,139,225,842,361.12
  5. Step 5: Solve for x
    x = 1,139,225,842,361.12/1,220,201.88
  6. Step 6: Final answer
    x = 933,637.18

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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.