Home / 789,954.61-1,090,110.40-450,532.21

Finding the Fourth Proportional to 789,954.61, 1,090,110.40 and 450,532.21

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Solution

The fourth proportional to 789,954.61, 1,090,110.40 and 450,532.21 is: 621,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,954.61 : 1,090,110.40 = 450,532.21 : x
  2. Step 2: Convert to fraction form
    789,954.61/1,090,110.40 = 450,532.21/x
  3. Step 3: Cross multiply
    789,954.61x = 1,090,110.40 × 450,532.21
  4. Step 4: Simplify right side
    789,954.61x = 491,129,847,655.98
  5. Step 5: Solve for x
    x = 491,129,847,655.98/789,954.61
  6. Step 6: Final answer
    x = 621,719.07

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1.5x scale

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.