Home / 911,390.85-1,367,119.08-342,719.82

Finding the Fourth Proportional to 911,390.85, 1,367,119.08 and 342,719.82

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Solution

The fourth proportional to 911,390.85, 1,367,119.08 and 342,719.82 is: 514,092.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,390.85 : 1,367,119.08 = 342,719.82 : x
  2. Step 2: Convert to fraction form
    911,390.85/1,367,119.08 = 342,719.82/x
  3. Step 3: Cross multiply
    911,390.85x = 1,367,119.08 × 342,719.82
  4. Step 4: Simplify right side
    911,390.85x = 468,538,805,016.17
  5. Step 5: Solve for x
    x = 468,538,805,016.17/911,390.85
  6. Step 6: Final answer
    x = 514,092.07

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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.