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Finding the Fourth Proportional to 513,331.46, 708,484.82 and 298,596

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Solution

The fourth proportional to 513,331.46, 708,484.82 and 298,596 is: 412,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,331.46 : 708,484.82 = 298,596 : x
  2. Step 2: Convert to fraction form
    513,331.46/708,484.82 = 298,596/x
  3. Step 3: Cross multiply
    513,331.46x = 708,484.82 × 298,596
  4. Step 4: Simplify right side
    513,331.46x = 211,550,731,819.74
  5. Step 5: Solve for x
    x = 211,550,731,819.74/513,331.46
  6. Step 6: Final answer
    x = 412,113.32

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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.