Home / 684,703.70-1,027,055.55-211,388.30

Finding the Fourth Proportional to 684,703.70, 1,027,055.55 and 211,388.30

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Solution

The fourth proportional to 684,703.70, 1,027,055.55 and 211,388.30 is: 317,082.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,703.70 : 1,027,055.55 = 211,388.30 : x
  2. Step 2: Convert to fraction form
    684,703.70/1,027,055.55 = 211,388.30/x
  3. Step 3: Cross multiply
    684,703.70x = 1,027,055.55 × 211,388.30
  4. Step 4: Simplify right side
    684,703.70x = 217,107,526,720.07
  5. Step 5: Solve for x
    x = 217,107,526,720.07/684,703.70
  6. Step 6: Final answer
    x = 317,082.45

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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.