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Finding the Fourth Proportional to 401,452.40, 602,178.60 and 395,231.60

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Solution

The fourth proportional to 401,452.40, 602,178.60 and 395,231.60 is: 592,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,452.40 : 602,178.60 = 395,231.60 : x
  2. Step 2: Convert to fraction form
    401,452.40/602,178.60 = 395,231.60/x
  3. Step 3: Cross multiply
    401,452.40x = 602,178.60 × 395,231.60
  4. Step 4: Simplify right side
    401,452.40x = 238,000,011,563.76
  5. Step 5: Solve for x
    x = 238,000,011,563.76/401,452.40
  6. Step 6: Final answer
    x = 592,847.40

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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.