Home / 671,436.12-926,706.06-384,958.20

Finding the Fourth Proportional to 671,436.12, 926,706.06 and 384,958.20

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Solution

The fourth proportional to 671,436.12, 926,706.06 and 384,958.20 is: 531,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,436.12 : 926,706.06 = 384,958.20 : x
  2. Step 2: Convert to fraction form
    671,436.12/926,706.06 = 384,958.20/x
  3. Step 3: Cross multiply
    671,436.12x = 926,706.06 × 384,958.20
  4. Step 4: Simplify right side
    671,436.12x = 356,743,096,786.69
  5. Step 5: Solve for x
    x = 356,743,096,786.69/671,436.12
  6. Step 6: Final answer
    x = 531,313.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.