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Finding the Fourth Proportional to 1,490,904.70, 2,236,357.05 and 1,490,904.70

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Solution

The fourth proportional to 1,490,904.70, 2,236,357.05 and 1,490,904.70 is: 2,236,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,904.70 : 2,236,357.05 = 1,490,904.70 : x
  2. Step 2: Convert to fraction form
    1,490,904.70/2,236,357.05 = 1,490,904.70/x
  3. Step 3: Cross multiply
    1,490,904.70x = 2,236,357.05 × 1,490,904.70
  4. Step 4: Simplify right side
    1,490,904.70x = 3,334,195,236,723.14
  5. Step 5: Solve for x
    x = 3,334,195,236,723.14/1,490,904.70
  6. Step 6: Final answer
    x = 2,236,357.05

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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.