Home / 437,829.40-656,744.10-280,365.40

Finding the Fourth Proportional to 437,829.40, 656,744.10 and 280,365.40

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Solution

The fourth proportional to 437,829.40, 656,744.10 and 280,365.40 is: 420,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,829.40 : 656,744.10 = 280,365.40 : x
  2. Step 2: Convert to fraction form
    437,829.40/656,744.10 = 280,365.40/x
  3. Step 3: Cross multiply
    437,829.40x = 656,744.10 × 280,365.40
  4. Step 4: Simplify right side
    437,829.40x = 184,128,322,294.14
  5. Step 5: Solve for x
    x = 184,128,322,294.14/437,829.40
  6. Step 6: Final answer
    x = 420,548.10

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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.