Home / 1,091,723.40-1,637,585.10-343,672.20

Finding the Fourth Proportional to 1,091,723.40, 1,637,585.10 and 343,672.20

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Solution

The fourth proportional to 1,091,723.40, 1,637,585.10 and 343,672.20 is: 515,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,723.40 : 1,637,585.10 = 343,672.20 : x
  2. Step 2: Convert to fraction form
    1,091,723.40/1,637,585.10 = 343,672.20/x
  3. Step 3: Cross multiply
    1,091,723.40x = 1,637,585.10 × 343,672.20
  4. Step 4: Simplify right side
    1,091,723.40x = 562,792,474,004.22
  5. Step 5: Solve for x
    x = 562,792,474,004.22/1,091,723.40
  6. Step 6: Final answer
    x = 515,508.30

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Double scale
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Similar ratio
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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.