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Finding the Third Proportional to 920,610 and 1,243,811

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Solution

The third proportional to 920,610 and 1,243,811 is: 1,680,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,610 : 1,243,811 = 1,243,811 : x
  2. Step 2: Convert to fraction form
    920,610/1,243,811 = 1,243,811/x
  3. Step 3: Cross multiply
    920,610x = 1,243,811 × 1,243,811
  4. Step 4: Simplify right side
    920,610x = 1,547,065,803,721
  5. Step 5: Solve for x
    x = 1,547,065,803,721/920,610
  6. Step 6: Final answer
    x = 1,680,479.03

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.