Home / 845,375.10-1,269,188.55-490,643.70

Finding the Fourth Proportional to 845,375.10, 1,269,188.55 and 490,643.70

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Solution

The fourth proportional to 845,375.10, 1,269,188.55 and 490,643.70 is: 736,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,375.10 : 1,269,188.55 = 490,643.70 : x
  2. Step 2: Convert to fraction form
    845,375.10/1,269,188.55 = 490,643.70/x
  3. Step 3: Cross multiply
    845,375.10x = 1,269,188.55 × 490,643.70
  4. Step 4: Simplify right side
    845,375.10x = 622,719,366,169.64
  5. Step 5: Solve for x
    x = 622,719,366,169.64/845,375.10
  6. Step 6: Final answer
    x = 736,619.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.