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Finding the Third Proportional to 313,388 and 470,776

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Solution

The third proportional to 313,388 and 470,776 is: 707,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,388 : 470,776 = 470,776 : x
  2. Step 2: Convert to fraction form
    313,388/470,776 = 470,776/x
  3. Step 3: Cross multiply
    313,388x = 470,776 × 470,776
  4. Step 4: Simplify right side
    313,388x = 221,630,042,176
  5. Step 5: Solve for x
    x = 221,630,042,176/313,388
  6. Step 6: Final answer
    x = 707,206.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.