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Finding the Fourth Proportional to 2,834,357.32, 4,252,268.96 and 812,749.20

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Solution

The fourth proportional to 2,834,357.32, 4,252,268.96 and 812,749.20 is: 1,219,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834,357.32 : 4,252,268.96 = 812,749.20 : x
  2. Step 2: Convert to fraction form
    2,834,357.32/4,252,268.96 = 812,749.20/x
  3. Step 3: Cross multiply
    2,834,357.32x = 4,252,268.96 × 812,749.20
  4. Step 4: Simplify right side
    2,834,357.32x = 3,456,028,195,424.83
  5. Step 5: Solve for x
    x = 3,456,028,195,424.83/2,834,357.32
  6. Step 6: Final answer
    x = 1,219,333.98

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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.