Home / 765,509.94-1,056,534.84-443,418.30

Finding the Fourth Proportional to 765,509.94, 1,056,534.84 and 443,418.30

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Solution

The fourth proportional to 765,509.94, 1,056,534.84 and 443,418.30 is: 611,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,509.94 : 1,056,534.84 = 443,418.30 : x
  2. Step 2: Convert to fraction form
    765,509.94/1,056,534.84 = 443,418.30/x
  3. Step 3: Cross multiply
    765,509.94x = 1,056,534.84 × 443,418.30
  4. Step 4: Simplify right side
    765,509.94x = 468,486,882,643.57
  5. Step 5: Solve for x
    x = 468,486,882,643.57/765,509.94
  6. Step 6: Final answer
    x = 611,993.21

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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.