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Finding the Fourth Proportional to 456,496.40, 684,744.60 and 448,623.20

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Solution

The fourth proportional to 456,496.40, 684,744.60 and 448,623.20 is: 672,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,496.40 : 684,744.60 = 448,623.20 : x
  2. Step 2: Convert to fraction form
    456,496.40/684,744.60 = 448,623.20/x
  3. Step 3: Cross multiply
    456,496.40x = 684,744.60 × 448,623.20
  4. Step 4: Simplify right side
    456,496.40x = 307,192,313,634.72
  5. Step 5: Solve for x
    x = 307,192,313,634.72/456,496.40
  6. Step 6: Final answer
    x = 672,934.80

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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.