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Finding the Fourth Proportional to 474,003.90, 711,005.85 and 306,042.30

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Solution

The fourth proportional to 474,003.90, 711,005.85 and 306,042.30 is: 459,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,003.90 : 711,005.85 = 306,042.30 : x
  2. Step 2: Convert to fraction form
    474,003.90/711,005.85 = 306,042.30/x
  3. Step 3: Cross multiply
    474,003.90x = 711,005.85 × 306,042.30
  4. Step 4: Simplify right side
    474,003.90x = 217,597,865,647.46
  5. Step 5: Solve for x
    x = 217,597,865,647.46/474,003.90
  6. Step 6: Final answer
    x = 459,063.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.