Home / 1,267,219.26-1,748,748-686,431.30

Finding the Fourth Proportional to 1,267,219.26, 1,748,748 and 686,431.30

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Solution

The fourth proportional to 1,267,219.26, 1,748,748 and 686,431.30 is: 947,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,219.26 : 1,748,748 = 686,431.30 : x
  2. Step 2: Convert to fraction form
    1,267,219.26/1,748,748 = 686,431.30/x
  3. Step 3: Cross multiply
    1,267,219.26x = 1,748,748 × 686,431.30
  4. Step 4: Simplify right side
    1,267,219.26x = 1,200,395,363,012.40
  5. Step 5: Solve for x
    x = 1,200,395,363,012.40/1,267,219.26
  6. Step 6: Final answer
    x = 947,267.30

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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.