Home / 866,428.80-1,299,643.20-729,571.20

Finding the Fourth Proportional to 866,428.80, 1,299,643.20 and 729,571.20

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Solution

The fourth proportional to 866,428.80, 1,299,643.20 and 729,571.20 is: 1,094,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,428.80 : 1,299,643.20 = 729,571.20 : x
  2. Step 2: Convert to fraction form
    866,428.80/1,299,643.20 = 729,571.20/x
  3. Step 3: Cross multiply
    866,428.80x = 1,299,643.20 × 729,571.20
  4. Step 4: Simplify right side
    866,428.80x = 948,182,248,995.84
  5. Step 5: Solve for x
    x = 948,182,248,995.84/866,428.80
  6. Step 6: Final answer
    x = 1,094,356.80

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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.