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Finding the Fourth Proportional to 2,811,018, 4,216,643.64 and 816,474

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Solution

The fourth proportional to 2,811,018, 4,216,643.64 and 816,474 is: 1,224,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,018 : 4,216,643.64 = 816,474 : x
  2. Step 2: Convert to fraction form
    2,811,018/4,216,643.64 = 816,474/x
  3. Step 3: Cross multiply
    2,811,018x = 4,216,643.64 × 816,474
  4. Step 4: Simplify right side
    2,811,018x = 3,442,779,899,325.36
  5. Step 5: Solve for x
    x = 3,442,779,899,325.36/2,811,018
  6. Step 6: Final answer
    x = 1,224,744.88

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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.