Home / 845,376.60-1,269,190.80-490,645.20

Finding the Fourth Proportional to 845,376.60, 1,269,190.80 and 490,645.20

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Solution

The fourth proportional to 845,376.60, 1,269,190.80 and 490,645.20 is: 736,621.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,376.60 : 1,269,190.80 = 490,645.20 : x
  2. Step 2: Convert to fraction form
    845,376.60/1,269,190.80 = 490,645.20/x
  3. Step 3: Cross multiply
    845,376.60x = 1,269,190.80 × 490,645.20
  4. Step 4: Simplify right side
    845,376.60x = 622,722,373,904.16
  5. Step 5: Solve for x
    x = 622,722,373,904.16/845,376.60
  6. Step 6: Final answer
    x = 736,621.26

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Double scale
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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.