Home / 792,142.05-1,188,213.08-392,844.45

Finding the Fourth Proportional to 792,142.05, 1,188,213.08 and 392,844.45

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Solution

The fourth proportional to 792,142.05, 1,188,213.08 and 392,844.45 is: 589,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,142.05 : 1,188,213.08 = 392,844.45 : x
  2. Step 2: Convert to fraction form
    792,142.05/1,188,213.08 = 392,844.45/x
  3. Step 3: Cross multiply
    792,142.05x = 1,188,213.08 × 392,844.45
  4. Step 4: Simplify right side
    792,142.05x = 466,782,911,931.18
  5. Step 5: Solve for x
    x = 466,782,911,931.18/792,142.05
  6. Step 6: Final answer
    x = 589,266.68

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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.