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Finding the Fourth Proportional to 603,281.20, 904,921.80 and 401,202.40

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Solution

The fourth proportional to 603,281.20, 904,921.80 and 401,202.40 is: 601,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,281.20 : 904,921.80 = 401,202.40 : x
  2. Step 2: Convert to fraction form
    603,281.20/904,921.80 = 401,202.40/x
  3. Step 3: Cross multiply
    603,281.20x = 904,921.80 × 401,202.40
  4. Step 4: Simplify right side
    603,281.20x = 363,056,797,972.32
  5. Step 5: Solve for x
    x = 363,056,797,972.32/603,281.20
  6. Step 6: Final answer
    x = 601,803.60

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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.