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Finding the Third Proportional to 678,197.81 and 1,462,870.13

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Solution

The third proportional to 678,197.81 and 1,462,870.13 is: 3,155,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,197.81 : 1,462,870.13 = 1,462,870.13 : x
  2. Step 2: Convert to fraction form
    678,197.81/1,462,870.13 = 1,462,870.13/x
  3. Step 3: Cross multiply
    678,197.81x = 1,462,870.13 × 1,462,870.13
  4. Step 4: Simplify right side
    678,197.81x = 2,139,989,002,617.52
  5. Step 5: Solve for x
    x = 2,139,989,002,617.52/678,197.81
  6. Step 6: Final answer
    x = 3,155,405.35

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.