Home / 1,267,742.85-1,749,491.78-686,966.21

Finding the Fourth Proportional to 1,267,742.85, 1,749,491.78 and 686,966.21

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Solution

The fourth proportional to 1,267,742.85, 1,749,491.78 and 686,966.21 is: 948,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,742.85 : 1,749,491.78 = 686,966.21 : x
  2. Step 2: Convert to fraction form
    1,267,742.85/1,749,491.78 = 686,966.21/x
  3. Step 3: Cross multiply
    1,267,742.85x = 1,749,491.78 × 686,966.21
  4. Step 4: Simplify right side
    1,267,742.85x = 1,201,841,725,350.46
  5. Step 5: Solve for x
    x = 1,201,841,725,350.46/1,267,742.85
  6. Step 6: Final answer
    x = 948,016.96

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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.