Home / 3,615,428.50-5,423,174.52-919,756.56

Finding the Fourth Proportional to 3,615,428.50, 5,423,174.52 and 919,756.56

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Solution

The fourth proportional to 3,615,428.50, 5,423,174.52 and 919,756.56 is: 1,379,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615,428.50 : 5,423,174.52 = 919,756.56 : x
  2. Step 2: Convert to fraction form
    3,615,428.50/5,423,174.52 = 919,756.56/x
  3. Step 3: Cross multiply
    3,615,428.50x = 5,423,174.52 × 919,756.56
  4. Step 4: Simplify right side
    3,615,428.50x = 4,988,000,340,794.85
  5. Step 5: Solve for x
    x = 4,988,000,340,794.85/3,615,428.50
  6. Step 6: Final answer
    x = 1,379,642.92

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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.