Home / 723,940.80-1,085,911.20-471,998.40

Finding the Fourth Proportional to 723,940.80, 1,085,911.20 and 471,998.40

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Solution

The fourth proportional to 723,940.80, 1,085,911.20 and 471,998.40 is: 707,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,940.80 : 1,085,911.20 = 471,998.40 : x
  2. Step 2: Convert to fraction form
    723,940.80/1,085,911.20 = 471,998.40/x
  3. Step 3: Cross multiply
    723,940.80x = 1,085,911.20 × 471,998.40
  4. Step 4: Simplify right side
    723,940.80x = 512,548,348,942.08
  5. Step 5: Solve for x
    x = 512,548,348,942.08/723,940.80
  6. Step 6: Final answer
    x = 707,997.60

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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.