Home / 890,742.90-1,336,114.35-259,677.30

Finding the Fourth Proportional to 890,742.90, 1,336,114.35 and 259,677.30

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Solution

The fourth proportional to 890,742.90, 1,336,114.35 and 259,677.30 is: 389,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,742.90 : 1,336,114.35 = 259,677.30 : x
  2. Step 2: Convert to fraction form
    890,742.90/1,336,114.35 = 259,677.30/x
  3. Step 3: Cross multiply
    890,742.90x = 1,336,114.35 × 259,677.30
  4. Step 4: Simplify right side
    890,742.90x = 346,958,566,899.26
  5. Step 5: Solve for x
    x = 346,958,566,899.26/890,742.90
  6. Step 6: Final answer
    x = 389,515.95

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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.