Home / 1,222,101.40-1,834,026.90-689,056.60

Finding the Fourth Proportional to 1,222,101.40, 1,834,026.90 and 689,056.60

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Solution

The fourth proportional to 1,222,101.40, 1,834,026.90 and 689,056.60 is: 1,034,078.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,101.40 : 1,834,026.90 = 689,056.60 : x
  2. Step 2: Convert to fraction form
    1,222,101.40/1,834,026.90 = 689,056.60/x
  3. Step 3: Cross multiply
    1,222,101.40x = 1,834,026.90 × 689,056.60
  4. Step 4: Simplify right side
    1,222,101.40x = 1,263,748,340,022.54
  5. Step 5: Solve for x
    x = 1,263,748,340,022.54/1,222,101.40
  6. Step 6: Final answer
    x = 1,034,078.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.