Home / 1,259,426.72-1,738,009.92-686,455.36

Finding the Fourth Proportional to 1,259,426.72, 1,738,009.92 and 686,455.36

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Solution

The fourth proportional to 1,259,426.72, 1,738,009.92 and 686,455.36 is: 947,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,426.72 : 1,738,009.92 = 686,455.36 : x
  2. Step 2: Convert to fraction form
    1,259,426.72/1,738,009.92 = 686,455.36/x
  3. Step 3: Cross multiply
    1,259,426.72x = 1,738,009.92 × 686,455.36
  4. Step 4: Simplify right side
    1,259,426.72x = 1,193,066,225,317.17
  5. Step 5: Solve for x
    x = 1,193,066,225,317.17/1,259,426.72
  6. Step 6: Final answer
    x = 947,308.97

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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.