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Finding the Fourth Proportional to 636,670.33, 878,586.53 and 350,190.34

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Solution

The fourth proportional to 636,670.33, 878,586.53 and 350,190.34 is: 483,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,670.33 : 878,586.53 = 350,190.34 : x
  2. Step 2: Convert to fraction form
    636,670.33/878,586.53 = 350,190.34/x
  3. Step 3: Cross multiply
    636,670.33x = 878,586.53 × 350,190.34
  4. Step 4: Simplify right side
    636,670.33x = 307,672,514,339.13
  5. Step 5: Solve for x
    x = 307,672,514,339.13/636,670.33
  6. Step 6: Final answer
    x = 483,252.48

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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.