Home / 1,428,653.60-2,141,230.80-629,086.40

Finding the Fourth Proportional to 1,428,653.60, 2,141,230.80 and 629,086.40

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Solution

The fourth proportional to 1,428,653.60, 2,141,230.80 and 629,086.40 is: 942,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,653.60 : 2,141,230.80 = 629,086.40 : x
  2. Step 2: Convert to fraction form
    1,428,653.60/2,141,230.80 = 629,086.40/x
  3. Step 3: Cross multiply
    1,428,653.60x = 2,141,230.80 × 629,086.40
  4. Step 4: Simplify right side
    1,428,653.60x = 1,347,019,175,541.12
  5. Step 5: Solve for x
    x = 1,347,019,175,541.12/1,428,653.60
  6. Step 6: Final answer
    x = 942,859.19

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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.