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Finding the Fourth Proportional to 2,664,681.60, 3,996,147.60 and 981,566.40

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Solution

The fourth proportional to 2,664,681.60, 3,996,147.60 and 981,566.40 is: 1,472,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,681.60 : 3,996,147.60 = 981,566.40 : x
  2. Step 2: Convert to fraction form
    2,664,681.60/3,996,147.60 = 981,566.40/x
  3. Step 3: Cross multiply
    2,664,681.60x = 3,996,147.60 × 981,566.40
  4. Step 4: Simplify right side
    2,664,681.60x = 3,922,484,213,600.64
  5. Step 5: Solve for x
    x = 3,922,484,213,600.64/2,664,681.60
  6. Step 6: Final answer
    x = 1,472,027.36

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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.