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Finding the Third Proportional to 506,630 and 790,618

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Solution

The third proportional to 506,630 and 790,618 is: 1,233,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,630 : 790,618 = 790,618 : x
  2. Step 2: Convert to fraction form
    506,630/790,618 = 790,618/x
  3. Step 3: Cross multiply
    506,630x = 790,618 × 790,618
  4. Step 4: Simplify right side
    506,630x = 625,076,821,924
  5. Step 5: Solve for x
    x = 625,076,821,924/506,630
  6. Step 6: Final answer
    x = 1,233,793.54

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.