Home / 698,882.72-1,048,808.76-319,849.76

Finding the Fourth Proportional to 698,882.72, 1,048,808.76 and 319,849.76

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Solution

The fourth proportional to 698,882.72, 1,048,808.76 and 319,849.76 is: 479,996.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,882.72 : 1,048,808.76 = 319,849.76 : x
  2. Step 2: Convert to fraction form
    698,882.72/1,048,808.76 = 319,849.76/x
  3. Step 3: Cross multiply
    698,882.72x = 1,048,808.76 × 319,849.76
  4. Step 4: Simplify right side
    698,882.72x = 335,461,230,171.90
  5. Step 5: Solve for x
    x = 335,461,230,171.90/698,882.72
  6. Step 6: Final answer
    x = 479,996.46

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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.