Home / 456,331.20-684,496.80-448,555.20

Finding the Fourth Proportional to 456,331.20, 684,496.80 and 448,555.20

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Solution

The fourth proportional to 456,331.20, 684,496.80 and 448,555.20 is: 672,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,331.20 : 684,496.80 = 448,555.20 : x
  2. Step 2: Convert to fraction form
    456,331.20/684,496.80 = 448,555.20/x
  3. Step 3: Cross multiply
    456,331.20x = 684,496.80 × 448,555.20
  4. Step 4: Simplify right side
    456,331.20x = 307,034,599,023.36
  5. Step 5: Solve for x
    x = 307,034,599,023.36/456,331.20
  6. Step 6: Final answer
    x = 672,832.80

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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.