Home / 738,010.30-1,107,015.45-422,499.10

Finding the Fourth Proportional to 738,010.30, 1,107,015.45 and 422,499.10

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Solution

The fourth proportional to 738,010.30, 1,107,015.45 and 422,499.10 is: 633,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,010.30 : 1,107,015.45 = 422,499.10 : x
  2. Step 2: Convert to fraction form
    738,010.30/1,107,015.45 = 422,499.10/x
  3. Step 3: Cross multiply
    738,010.30x = 1,107,015.45 × 422,499.10
  4. Step 4: Simplify right side
    738,010.30x = 467,713,031,311.10
  5. Step 5: Solve for x
    x = 467,713,031,311.10/738,010.30
  6. Step 6: Final answer
    x = 633,748.65

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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.