Home / 436,212.80-654,319.20-310,241.60

Finding the Fourth Proportional to 436,212.80, 654,319.20 and 310,241.60

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Solution

The fourth proportional to 436,212.80, 654,319.20 and 310,241.60 is: 465,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,212.80 : 654,319.20 = 310,241.60 : x
  2. Step 2: Convert to fraction form
    436,212.80/654,319.20 = 310,241.60/x
  3. Step 3: Cross multiply
    436,212.80x = 654,319.20 × 310,241.60
  4. Step 4: Simplify right side
    436,212.80x = 202,997,035,518.72
  5. Step 5: Solve for x
    x = 202,997,035,518.72/436,212.80
  6. Step 6: Final answer
    x = 465,362.40

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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.