Home / 1,267,220.26-1,748,749.38-686,432.30

Finding the Fourth Proportional to 1,267,220.26, 1,748,749.38 and 686,432.30

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Solution

The fourth proportional to 1,267,220.26, 1,748,749.38 and 686,432.30 is: 947,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,220.26 : 1,748,749.38 = 686,432.30 : x
  2. Step 2: Convert to fraction form
    1,267,220.26/1,748,749.38 = 686,432.30/x
  3. Step 3: Cross multiply
    1,267,220.26x = 1,748,749.38 × 686,432.30
  4. Step 4: Simplify right side
    1,267,220.26x = 1,200,398,059,036.97
  5. Step 5: Solve for x
    x = 1,200,398,059,036.97/1,267,220.26
  6. Step 6: Final answer
    x = 947,268.68

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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.