Home / 481,307.40-721,961.10-245,111.40

Finding the Fourth Proportional to 481,307.40, 721,961.10 and 245,111.40

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Solution

The fourth proportional to 481,307.40, 721,961.10 and 245,111.40 is: 367,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,307.40 : 721,961.10 = 245,111.40 : x
  2. Step 2: Convert to fraction form
    481,307.40/721,961.10 = 245,111.40/x
  3. Step 3: Cross multiply
    481,307.40x = 721,961.10 × 245,111.40
  4. Step 4: Simplify right side
    481,307.40x = 176,960,895,966.54
  5. Step 5: Solve for x
    x = 176,960,895,966.54/481,307.40
  6. Step 6: Final answer
    x = 367,667.10

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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.