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Finding the Third Proportional to 920,608 and 1,243,808

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Solution

The third proportional to 920,608 and 1,243,808 is: 1,680,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,608 : 1,243,808 = 1,243,808 : x
  2. Step 2: Convert to fraction form
    920,608/1,243,808 = 1,243,808/x
  3. Step 3: Cross multiply
    920,608x = 1,243,808 × 1,243,808
  4. Step 4: Simplify right side
    920,608x = 1,547,058,340,864
  5. Step 5: Solve for x
    x = 1,547,058,340,864/920,608
  6. Step 6: Final answer
    x = 1,680,474.58

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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.