Home / 1,221,155.11-1,683,247.62-962,610.76

Finding the Fourth Proportional to 1,221,155.11, 1,683,247.62 and 962,610.76

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Solution

The fourth proportional to 1,221,155.11, 1,683,247.62 and 962,610.76 is: 1,326,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,155.11 : 1,683,247.62 = 962,610.76 : x
  2. Step 2: Convert to fraction form
    1,221,155.11/1,683,247.62 = 962,610.76/x
  3. Step 3: Cross multiply
    1,221,155.11x = 1,683,247.62 × 962,610.76
  4. Step 4: Simplify right side
    1,221,155.11x = 1,620,312,270,756.39
  5. Step 5: Solve for x
    x = 1,620,312,270,756.39/1,221,155.11
  6. Step 6: Final answer
    x = 1,326,868.52

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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.