Home / 693,611.10-1,040,416.65-220,344.30

Finding the Fourth Proportional to 693,611.10, 1,040,416.65 and 220,344.30

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Solution

The fourth proportional to 693,611.10, 1,040,416.65 and 220,344.30 is: 330,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,611.10 : 1,040,416.65 = 220,344.30 : x
  2. Step 2: Convert to fraction form
    693,611.10/1,040,416.65 = 220,344.30/x
  3. Step 3: Cross multiply
    693,611.10x = 1,040,416.65 × 220,344.30
  4. Step 4: Simplify right side
    693,611.10x = 229,249,878,452.60
  5. Step 5: Solve for x
    x = 229,249,878,452.60/693,611.10
  6. Step 6: Final answer
    x = 330,516.45

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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.