Home / 1,220,200.38-1,683,977.31-676,506.69

Finding the Fourth Proportional to 1,220,200.38, 1,683,977.31 and 676,506.69

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Solution

The fourth proportional to 1,220,200.38, 1,683,977.31 and 676,506.69 is: 933,635.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,200.38 : 1,683,977.31 = 676,506.69 : x
  2. Step 2: Convert to fraction form
    1,220,200.38/1,683,977.31 = 676,506.69/x
  3. Step 3: Cross multiply
    1,220,200.38x = 1,683,977.31 × 676,506.69
  4. Step 4: Simplify right side
    1,220,200.38x = 1,139,221,916,023.20
  5. Step 5: Solve for x
    x = 1,139,221,916,023.20/1,220,200.38
  6. Step 6: Final answer
    x = 933,635.11

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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.