Home / 628,302.30-942,453.45-328,667.10

Finding the Fourth Proportional to 628,302.30, 942,453.45 and 328,667.10

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Solution

The fourth proportional to 628,302.30, 942,453.45 and 328,667.10 is: 493,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,302.30 : 942,453.45 = 328,667.10 : x
  2. Step 2: Convert to fraction form
    628,302.30/942,453.45 = 328,667.10/x
  3. Step 3: Cross multiply
    628,302.30x = 942,453.45 × 328,667.10
  4. Step 4: Simplify right side
    628,302.30x = 309,753,442,296.50
  5. Step 5: Solve for x
    x = 309,753,442,296.50/628,302.30
  6. Step 6: Final answer
    x = 493,000.65

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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.