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Finding the Third Proportional to 521,337 and 805,946.25

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Solution

The third proportional to 521,337 and 805,946.25 is: 1,245,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,337 : 805,946.25 = 805,946.25 : x
  2. Step 2: Convert to fraction form
    521,337/805,946.25 = 805,946.25/x
  3. Step 3: Cross multiply
    521,337x = 805,946.25 × 805,946.25
  4. Step 4: Simplify right side
    521,337x = 649,549,357,889.06
  5. Step 5: Solve for x
    x = 649,549,357,889.06/521,337
  6. Step 6: Final answer
    x = 1,245,929.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.