Home / 1,202,642.63-1,659,673.64-686,386.16

Finding the Fourth Proportional to 1,202,642.63, 1,659,673.64 and 686,386.16

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Solution

The fourth proportional to 1,202,642.63, 1,659,673.64 and 686,386.16 is: 947,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,642.63 : 1,659,673.64 = 686,386.16 : x
  2. Step 2: Convert to fraction form
    1,202,642.63/1,659,673.64 = 686,386.16/x
  3. Step 3: Cross multiply
    1,202,642.63x = 1,659,673.64 × 686,386.16
  4. Step 4: Simplify right side
    1,202,642.63x = 1,139,177,004,882.52
  5. Step 5: Solve for x
    x = 1,139,177,004,882.52/1,202,642.63
  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.