Home / 1,202,642.64-1,659,673.62-686,386.17

Finding the Fourth Proportional to 1,202,642.64, 1,659,673.62 and 686,386.17

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Solution

The fourth proportional to 1,202,642.64, 1,659,673.62 and 686,386.17 is: 947,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,642.64 : 1,659,673.62 = 686,386.17 : x
  2. Step 2: Convert to fraction form
    1,202,642.64/1,659,673.62 = 686,386.17/x
  3. Step 3: Cross multiply
    1,202,642.64x = 1,659,673.62 × 686,386.17
  4. Step 4: Simplify right side
    1,202,642.64x = 1,139,177,019,481.84
  5. Step 5: Solve for x
    x = 1,139,177,019,481.84/1,202,642.64
  6. Step 6: Final answer
    x = 947,228.20

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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.