Home / 407,827.40-611,741.10-108,354.20

Finding the Fourth Proportional to 407,827.40, 611,741.10 and 108,354.20

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Solution

The fourth proportional to 407,827.40, 611,741.10 and 108,354.20 is: 162,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,827.40 : 611,741.10 = 108,354.20 : x
  2. Step 2: Convert to fraction form
    407,827.40/611,741.10 = 108,354.20/x
  3. Step 3: Cross multiply
    407,827.40x = 611,741.10 × 108,354.20
  4. Step 4: Simplify right side
    407,827.40x = 66,284,717,497.62
  5. Step 5: Solve for x
    x = 66,284,717,497.62/407,827.40
  6. Step 6: Final answer
    x = 162,531.30

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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.