Home / 456,310.20-684,465.30-386,326.20

Finding the Fourth Proportional to 456,310.20, 684,465.30 and 386,326.20

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Solution

The fourth proportional to 456,310.20, 684,465.30 and 386,326.20 is: 579,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,310.20 : 684,465.30 = 386,326.20 : x
  2. Step 2: Convert to fraction form
    456,310.20/684,465.30 = 386,326.20/x
  3. Step 3: Cross multiply
    456,310.20x = 684,465.30 × 386,326.20
  4. Step 4: Simplify right side
    456,310.20x = 264,426,878,380.86
  5. Step 5: Solve for x
    x = 264,426,878,380.86/456,310.20
  6. Step 6: Final answer
    x = 579,489.30

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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.