Home / 3,478,556-5,217,772.44-1,428,772.76

Finding the Fourth Proportional to 3,478,556, 5,217,772.44 and 1,428,772.76

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Solution

The fourth proportional to 3,478,556, 5,217,772.44 and 1,428,772.76 is: 2,143,133.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,556 : 5,217,772.44 = 1,428,772.76 : x
  2. Step 2: Convert to fraction form
    3,478,556/5,217,772.44 = 1,428,772.76/x
  3. Step 3: Cross multiply
    3,478,556x = 5,217,772.44 × 1,428,772.76
  4. Step 4: Simplify right side
    3,478,556x = 7,455,011,130,150.74
  5. Step 5: Solve for x
    x = 7,455,011,130,150.74/3,478,556
  6. Step 6: Final answer
    x = 2,143,133.86

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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.