Home / 876,209.40-1,314,314.10-343,747.80

Finding the Fourth Proportional to 876,209.40, 1,314,314.10 and 343,747.80

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Solution

The fourth proportional to 876,209.40, 1,314,314.10 and 343,747.80 is: 515,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,209.40 : 1,314,314.10 = 343,747.80 : x
  2. Step 2: Convert to fraction form
    876,209.40/1,314,314.10 = 343,747.80/x
  3. Step 3: Cross multiply
    876,209.40x = 1,314,314.10 × 343,747.80
  4. Step 4: Simplify right side
    876,209.40x = 451,792,580,383.98
  5. Step 5: Solve for x
    x = 451,792,580,383.98/876,209.40
  6. Step 6: Final answer
    x = 515,621.70

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Double scale
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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.