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Finding the Third Proportional to 528,087 and 1,121,620

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Solution

The third proportional to 528,087 and 1,121,620 is: 2,382,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,087 : 1,121,620 = 1,121,620 : x
  2. Step 2: Convert to fraction form
    528,087/1,121,620 = 1,121,620/x
  3. Step 3: Cross multiply
    528,087x = 1,121,620 × 1,121,620
  4. Step 4: Simplify right side
    528,087x = 1,258,031,424,400
  5. Step 5: Solve for x
    x = 1,258,031,424,400/528,087
  6. Step 6: Final answer
    x = 2,382,242.74

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.