Home / 829,209.80-1,243,814.70-268,244.30

Finding the Fourth Proportional to 829,209.80, 1,243,814.70 and 268,244.30

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Solution

The fourth proportional to 829,209.80, 1,243,814.70 and 268,244.30 is: 402,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,209.80 : 1,243,814.70 = 268,244.30 : x
  2. Step 2: Convert to fraction form
    829,209.80/1,243,814.70 = 268,244.30/x
  3. Step 3: Cross multiply
    829,209.80x = 1,243,814.70 × 268,244.30
  4. Step 4: Simplify right side
    829,209.80x = 333,646,203,531.21
  5. Step 5: Solve for x
    x = 333,646,203,531.21/829,209.80
  6. Step 6: Final answer
    x = 402,366.45

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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.