Home / 781,990.23-1,079,054.22-450,842.45

Finding the Fourth Proportional to 781,990.23, 1,079,054.22 and 450,842.45

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Solution

The fourth proportional to 781,990.23, 1,079,054.22 and 450,842.45 is: 622,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,990.23 : 1,079,054.22 = 450,842.45 : x
  2. Step 2: Convert to fraction form
    781,990.23/1,079,054.22 = 450,842.45/x
  3. Step 3: Cross multiply
    781,990.23x = 1,079,054.22 × 450,842.45
  4. Step 4: Simplify right side
    781,990.23x = 486,483,442,832.37
  5. Step 5: Solve for x
    x = 486,483,442,832.37/781,990.23
  6. Step 6: Final answer
    x = 622,109.36

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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.