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Finding the Fourth Proportional to 626,529.85, 864,612.05 and 340,049.96

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Solution

The fourth proportional to 626,529.85, 864,612.05 and 340,049.96 is: 469,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,529.85 : 864,612.05 = 340,049.96 : x
  2. Step 2: Convert to fraction form
    626,529.85/864,612.05 = 340,049.96/x
  3. Step 3: Cross multiply
    626,529.85x = 864,612.05 × 340,049.96
  4. Step 4: Simplify right side
    626,529.85x = 294,011,293,018.02
  5. Step 5: Solve for x
    x = 294,011,293,018.02/626,529.85
  6. Step 6: Final answer
    x = 469,269.41

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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.