Home / 456,301.20-684,451.80-386,317.20

Finding the Fourth Proportional to 456,301.20, 684,451.80 and 386,317.20

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Solution

The fourth proportional to 456,301.20, 684,451.80 and 386,317.20 is: 579,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,301.20 : 684,451.80 = 386,317.20 : x
  2. Step 2: Convert to fraction form
    456,301.20/684,451.80 = 386,317.20/x
  3. Step 3: Cross multiply
    456,301.20x = 684,451.80 × 386,317.20
  4. Step 4: Simplify right side
    456,301.20x = 264,415,502,910.96
  5. Step 5: Solve for x
    x = 264,415,502,910.96/456,301.20
  6. Step 6: Final answer
    x = 579,475.80

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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.