Home / 3,478,002.80-5,217,004.20-919,212.80

Finding the Fourth Proportional to 3,478,002.80, 5,217,004.20 and 919,212.80

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Solution

The fourth proportional to 3,478,002.80, 5,217,004.20 and 919,212.80 is: 1,378,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,002.80 : 5,217,004.20 = 919,212.80 : x
  2. Step 2: Convert to fraction form
    3,478,002.80/5,217,004.20 = 919,212.80/x
  3. Step 3: Cross multiply
    3,478,002.80x = 5,217,004.20 × 919,212.80
  4. Step 4: Simplify right side
    3,478,002.80x = 4,795,537,038,293.76
  5. Step 5: Solve for x
    x = 4,795,537,038,293.76/3,478,002.80
  6. Step 6: Final answer
    x = 1,378,819.20

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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.