Home / 726,643.40-1,090,353.90-305,961.80

Finding the Fourth Proportional to 726,643.40, 1,090,353.90 and 305,961.80

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Solution

The fourth proportional to 726,643.40, 1,090,353.90 and 305,961.80 is: 459,106.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,643.40 : 1,090,353.90 = 305,961.80 : x
  2. Step 2: Convert to fraction form
    726,643.40/1,090,353.90 = 305,961.80/x
  3. Step 3: Cross multiply
    726,643.40x = 1,090,353.90 × 305,961.80
  4. Step 4: Simplify right side
    726,643.40x = 333,606,641,881.02
  5. Step 5: Solve for x
    x = 333,606,641,881.02/726,643.40
  6. Step 6: Final answer
    x = 459,106.41

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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.