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Finding the Fourth Proportional to 564,861.92, 779,506.88 and 306,736.79

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Solution

The fourth proportional to 564,861.92, 779,506.88 and 306,736.79 is: 423,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,861.92 : 779,506.88 = 306,736.79 : x
  2. Step 2: Convert to fraction form
    564,861.92/779,506.88 = 306,736.79/x
  3. Step 3: Cross multiply
    564,861.92x = 779,506.88 × 306,736.79
  4. Step 4: Simplify right side
    564,861.92x = 239,103,440,869.72
  5. Step 5: Solve for x
    x = 239,103,440,869.72/564,861.92
  6. Step 6: Final answer
    x = 423,295.38

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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.