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Finding the Fourth Proportional to 497,744.40, 746,616.60 and 298,678.80

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Solution

The fourth proportional to 497,744.40, 746,616.60 and 298,678.80 is: 448,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,744.40 : 746,616.60 = 298,678.80 : x
  2. Step 2: Convert to fraction form
    497,744.40/746,616.60 = 298,678.80/x
  3. Step 3: Cross multiply
    497,744.40x = 746,616.60 × 298,678.80
  4. Step 4: Simplify right side
    497,744.40x = 222,998,550,148.08
  5. Step 5: Solve for x
    x = 222,998,550,148.08/497,744.40
  6. Step 6: Final answer
    x = 448,018.20

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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.