Home / 505,430.10-758,325.44-217,120.59

Finding the Fourth Proportional to 505,430.10, 758,325.44 and 217,120.59

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Solution

The fourth proportional to 505,430.10, 758,325.44 and 217,120.59 is: 325,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,430.10 : 758,325.44 = 217,120.59 : x
  2. Step 2: Convert to fraction form
    505,430.10/758,325.44 = 217,120.59/x
  3. Step 3: Cross multiply
    505,430.10x = 758,325.44 × 217,120.59
  4. Step 4: Simplify right side
    505,430.10x = 164,648,067,487.61
  5. Step 5: Solve for x
    x = 164,648,067,487.61/505,430.10
  6. Step 6: Final answer
    x = 325,758.33

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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.