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Finding the Third Proportional to 414,128 and 887,316

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Solution

The third proportional to 414,128 and 887,316 is: 1,901,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,128 : 887,316 = 887,316 : x
  2. Step 2: Convert to fraction form
    414,128/887,316 = 887,316/x
  3. Step 3: Cross multiply
    414,128x = 887,316 × 887,316
  4. Step 4: Simplify right side
    414,128x = 787,329,683,856
  5. Step 5: Solve for x
    x = 787,329,683,856/414,128
  6. Step 6: Final answer
    x = 1,901,174.72

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.