Home / 717,272.32-1,075,906.80-218,636.32

Finding the Fourth Proportional to 717,272.32, 1,075,906.80 and 218,636.32

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Solution

The fourth proportional to 717,272.32, 1,075,906.80 and 218,636.32 is: 327,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,272.32 : 1,075,906.80 = 218,636.32 : x
  2. Step 2: Convert to fraction form
    717,272.32/1,075,906.80 = 218,636.32/x
  3. Step 3: Cross multiply
    717,272.32x = 1,075,906.80 × 218,636.32
  4. Step 4: Simplify right side
    717,272.32x = 235,232,303,414.98
  5. Step 5: Solve for x
    x = 235,232,303,414.98/717,272.32
  6. Step 6: Final answer
    x = 327,953.97

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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.