Home / 723,253.50-1,084,880.25-280,021.50

Finding the Fourth Proportional to 723,253.50, 1,084,880.25 and 280,021.50

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Solution

The fourth proportional to 723,253.50, 1,084,880.25 and 280,021.50 is: 420,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,253.50 : 1,084,880.25 = 280,021.50 : x
  2. Step 2: Convert to fraction form
    723,253.50/1,084,880.25 = 280,021.50/x
  3. Step 3: Cross multiply
    723,253.50x = 1,084,880.25 × 280,021.50
  4. Step 4: Simplify right side
    723,253.50x = 303,789,794,925.38
  5. Step 5: Solve for x
    x = 303,789,794,925.38/723,253.50
  6. Step 6: Final answer
    x = 420,032.25

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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.