Home / 826,140.62-1,239,270.15-345,885.14

Finding the Fourth Proportional to 826,140.62, 1,239,270.15 and 345,885.14

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Solution

The fourth proportional to 826,140.62, 1,239,270.15 and 345,885.14 is: 518,852.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,140.62 : 1,239,270.15 = 345,885.14 : x
  2. Step 2: Convert to fraction form
    826,140.62/1,239,270.15 = 345,885.14/x
  3. Step 3: Cross multiply
    826,140.62x = 1,239,270.15 × 345,885.14
  4. Step 4: Simplify right side
    826,140.62x = 428,645,124,431.29
  5. Step 5: Solve for x
    x = 428,645,124,431.29/826,140.62
  6. Step 6: Final answer
    x = 518,852.50

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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.