Home / 763,404.20-1,145,106.30-231,007.40

Finding the Fourth Proportional to 763,404.20, 1,145,106.30 and 231,007.40

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Solution

The fourth proportional to 763,404.20, 1,145,106.30 and 231,007.40 is: 346,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,404.20 : 1,145,106.30 = 231,007.40 : x
  2. Step 2: Convert to fraction form
    763,404.20/1,145,106.30 = 231,007.40/x
  3. Step 3: Cross multiply
    763,404.20x = 1,145,106.30 × 231,007.40
  4. Step 4: Simplify right side
    763,404.20x = 264,528,029,086.62
  5. Step 5: Solve for x
    x = 264,528,029,086.62/763,404.20
  6. Step 6: Final answer
    x = 346,511.10

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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.