Home / 1,314,145.79-1,813,178.48-769,989.21

Finding the Fourth Proportional to 1,314,145.79, 1,813,178.48 and 769,989.21

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Solution

The fourth proportional to 1,314,145.79, 1,813,178.48 and 769,989.21 is: 1,062,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,145.79 : 1,813,178.48 = 769,989.21 : x
  2. Step 2: Convert to fraction form
    1,314,145.79/1,813,178.48 = 769,989.21/x
  3. Step 3: Cross multiply
    1,314,145.79x = 1,813,178.48 × 769,989.21
  4. Step 4: Simplify right side
    1,314,145.79x = 1,396,127,854,754.84
  5. Step 5: Solve for x
    x = 1,396,127,854,754.84/1,314,145.79
  6. Step 6: Final answer
    x = 1,062,384.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.