Home / 402,433.60-603,650.40-243,001.30

Finding the Fourth Proportional to 402,433.60, 603,650.40 and 243,001.30

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Solution

The fourth proportional to 402,433.60, 603,650.40 and 243,001.30 is: 364,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,433.60 : 603,650.40 = 243,001.30 : x
  2. Step 2: Convert to fraction form
    402,433.60/603,650.40 = 243,001.30/x
  3. Step 3: Cross multiply
    402,433.60x = 603,650.40 × 243,001.30
  4. Step 4: Simplify right side
    402,433.60x = 146,687,831,945.52
  5. Step 5: Solve for x
    x = 146,687,831,945.52/402,433.60
  6. Step 6: Final answer
    x = 364,501.95

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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.