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Finding the Fourth Proportional to 628,324.40, 942,486.60 and 362,603.90

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Solution

The fourth proportional to 628,324.40, 942,486.60 and 362,603.90 is: 543,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,324.40 : 942,486.60 = 362,603.90 : x
  2. Step 2: Convert to fraction form
    628,324.40/942,486.60 = 362,603.90/x
  3. Step 3: Cross multiply
    628,324.40x = 942,486.60 × 362,603.90
  4. Step 4: Simplify right side
    628,324.40x = 341,749,316,857.74
  5. Step 5: Solve for x
    x = 341,749,316,857.74/628,324.40
  6. Step 6: Final answer
    x = 543,905.85

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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.