Home / 711,390.24-1,067,384.88-311,824.80

Finding the Fourth Proportional to 711,390.24, 1,067,384.88 and 311,824.80

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Solution

The fourth proportional to 711,390.24, 1,067,384.88 and 311,824.80 is: 467,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,390.24 : 1,067,384.88 = 311,824.80 : x
  2. Step 2: Convert to fraction form
    711,390.24/1,067,384.88 = 311,824.80/x
  3. Step 3: Cross multiply
    711,390.24x = 1,067,384.88 × 311,824.80
  4. Step 4: Simplify right side
    711,390.24x = 332,837,076,729.02
  5. Step 5: Solve for x
    x = 332,837,076,729.02/711,390.24
  6. Step 6: Final answer
    x = 467,868.49

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Double scale
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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.