Home / 1,428,727.20-2,143,090.80-629,597.40

Finding the Fourth Proportional to 1,428,727.20, 2,143,090.80 and 629,597.40

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Solution

The fourth proportional to 1,428,727.20, 2,143,090.80 and 629,597.40 is: 944,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,727.20 : 2,143,090.80 = 629,597.40 : x
  2. Step 2: Convert to fraction form
    1,428,727.20/2,143,090.80 = 629,597.40/x
  3. Step 3: Cross multiply
    1,428,727.20x = 2,143,090.80 × 629,597.40
  4. Step 4: Simplify right side
    1,428,727.20x = 1,349,284,395,643.92
  5. Step 5: Solve for x
    x = 1,349,284,395,643.92/1,428,727.20
  6. Step 6: Final answer
    x = 944,396.10

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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.