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Finding the Fourth Proportional to 2,912,795.90, 4,369,193.85 and 1,019,728.70

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Solution

The fourth proportional to 2,912,795.90, 4,369,193.85 and 1,019,728.70 is: 1,529,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,795.90 : 4,369,193.85 = 1,019,728.70 : x
  2. Step 2: Convert to fraction form
    2,912,795.90/4,369,193.85 = 1,019,728.70/x
  3. Step 3: Cross multiply
    2,912,795.90x = 4,369,193.85 × 1,019,728.70
  4. Step 4: Simplify right side
    2,912,795.90x = 4,455,392,364,708.49
  5. Step 5: Solve for x
    x = 4,455,392,364,708.49/2,912,795.90
  6. Step 6: Final answer
    x = 1,529,593.05

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Similar ratio
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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.