Home / 723,981.60-1,085,972.40-303,213.60

Finding the Fourth Proportional to 723,981.60, 1,085,972.40 and 303,213.60

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Solution

The fourth proportional to 723,981.60, 1,085,972.40 and 303,213.60 is: 454,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,981.60 : 1,085,972.40 = 303,213.60 : x
  2. Step 2: Convert to fraction form
    723,981.60/1,085,972.40 = 303,213.60/x
  3. Step 3: Cross multiply
    723,981.60x = 1,085,972.40 × 303,213.60
  4. Step 4: Simplify right side
    723,981.60x = 329,281,600,904.64
  5. Step 5: Solve for x
    x = 329,281,600,904.64/723,981.60
  6. Step 6: Final answer
    x = 454,820.40

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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.