Home / 484,430.40-726,127.20-218,145.60

Finding the Fourth Proportional to 484,430.40, 726,127.20 and 218,145.60

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Solution

The fourth proportional to 484,430.40, 726,127.20 and 218,145.60 is: 326,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,430.40 : 726,127.20 = 218,145.60 : x
  2. Step 2: Convert to fraction form
    484,430.40/726,127.20 = 218,145.60/x
  3. Step 3: Cross multiply
    484,430.40x = 726,127.20 × 218,145.60
  4. Step 4: Simplify right side
    484,430.40x = 158,401,453,720.32
  5. Step 5: Solve for x
    x = 158,401,453,720.32/484,430.40
  6. Step 6: Final answer
    x = 326,984.96

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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.