Home / 804,938.80-1,207,408.20-243,900.40

Finding the Fourth Proportional to 804,938.80, 1,207,408.20 and 243,900.40

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Solution

The fourth proportional to 804,938.80, 1,207,408.20 and 243,900.40 is: 365,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,938.80 : 1,207,408.20 = 243,900.40 : x
  2. Step 2: Convert to fraction form
    804,938.80/1,207,408.20 = 243,900.40/x
  3. Step 3: Cross multiply
    804,938.80x = 1,207,408.20 × 243,900.40
  4. Step 4: Simplify right side
    804,938.80x = 294,487,342,943.28
  5. Step 5: Solve for x
    x = 294,487,342,943.28/804,938.80
  6. Step 6: Final answer
    x = 365,850.60

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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.