Home / 789,953.86-1,090,109.37-450,531.46

Finding the Fourth Proportional to 789,953.86, 1,090,109.37 and 450,531.46

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Solution

The fourth proportional to 789,953.86, 1,090,109.37 and 450,531.46 is: 621,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,953.86 : 1,090,109.37 = 450,531.46 : x
  2. Step 2: Convert to fraction form
    789,953.86/1,090,109.37 = 450,531.46/x
  3. Step 3: Cross multiply
    789,953.86x = 1,090,109.37 × 450,531.46
  4. Step 4: Simplify right side
    789,953.86x = 491,128,566,025.78
  5. Step 5: Solve for x
    x = 491,128,566,025.78/789,953.86
  6. Step 6: Final answer
    x = 621,718.04

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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.