Home / 890,596.32-1,335,764.88-259,340.64

Finding the Fourth Proportional to 890,596.32, 1,335,764.88 and 259,340.64

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Solution

The fourth proportional to 890,596.32, 1,335,764.88 and 259,340.64 is: 388,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,596.32 : 1,335,764.88 = 259,340.64 : x
  2. Step 2: Convert to fraction form
    890,596.32/1,335,764.88 = 259,340.64/x
  3. Step 3: Cross multiply
    890,596.32x = 1,335,764.88 × 259,340.64
  4. Step 4: Simplify right side
    890,596.32x = 346,418,118,868.72
  5. Step 5: Solve for x
    x = 346,418,118,868.72/890,596.32
  6. Step 6: Final answer
    x = 388,973.22

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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.