Home / 684,636.80-1,027,052.40-211,272.80

Finding the Fourth Proportional to 684,636.80, 1,027,052.40 and 211,272.80

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Solution

The fourth proportional to 684,636.80, 1,027,052.40 and 211,272.80 is: 316,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,636.80 : 1,027,052.40 = 211,272.80 : x
  2. Step 2: Convert to fraction form
    684,636.80/1,027,052.40 = 211,272.80/x
  3. Step 3: Cross multiply
    684,636.80x = 1,027,052.40 × 211,272.80
  4. Step 4: Simplify right side
    684,636.80x = 216,988,236,294.72
  5. Step 5: Solve for x
    x = 216,988,236,294.72/684,636.80
  6. Step 6: Final answer
    x = 316,939.20

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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.