Home / 789,957.61-1,090,114.53-450,535.21

Finding the Fourth Proportional to 789,957.61, 1,090,114.53 and 450,535.21

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Solution

The fourth proportional to 789,957.61, 1,090,114.53 and 450,535.21 is: 621,723.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,957.61 : 1,090,114.53 = 450,535.21 : x
  2. Step 2: Convert to fraction form
    789,957.61/1,090,114.53 = 450,535.21/x
  3. Step 3: Cross multiply
    789,957.61x = 1,090,114.53 × 450,535.21
  4. Step 4: Simplify right side
    789,957.61x = 491,134,978,697.60
  5. Step 5: Solve for x
    x = 491,134,978,697.60/789,957.61
  6. Step 6: Final answer
    x = 621,723.21

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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.