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Finding the Fourth Proportional to 777,061.91, 1,072,060.99 and 470,917.44

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Solution

The fourth proportional to 777,061.91, 1,072,060.99 and 470,917.44 is: 649,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,061.91 : 1,072,060.99 = 470,917.44 : x
  2. Step 2: Convert to fraction form
    777,061.91/1,072,060.99 = 470,917.44/x
  3. Step 3: Cross multiply
    777,061.91x = 1,072,060.99 × 470,917.44
  4. Step 4: Simplify right side
    777,061.91x = 504,852,215,757.37
  5. Step 5: Solve for x
    x = 504,852,215,757.37/777,061.91
  6. Step 6: Final answer
    x = 649,693.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.