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Finding the Fourth Proportional to 636,670.58, 878,586.88 and 350,190.59

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Solution

The fourth proportional to 636,670.58, 878,586.88 and 350,190.59 is: 483,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,670.58 : 878,586.88 = 350,190.59 : x
  2. Step 2: Convert to fraction form
    636,670.58/878,586.88 = 350,190.59/x
  3. Step 3: Cross multiply
    636,670.58x = 878,586.88 × 350,190.59
  4. Step 4: Simplify right side
    636,670.58x = 307,672,856,122.51
  5. Step 5: Solve for x
    x = 307,672,856,122.51/636,670.58
  6. Step 6: Final answer
    x = 483,252.82

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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.