Home / 3,477,040.72-5,215,479.68-918,434.24

Finding the Fourth Proportional to 3,477,040.72, 5,215,479.68 and 918,434.24

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Solution

The fourth proportional to 3,477,040.72, 5,215,479.68 and 918,434.24 is: 1,377,629.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477,040.72 : 5,215,479.68 = 918,434.24 : x
  2. Step 2: Convert to fraction form
    3,477,040.72/5,215,479.68 = 918,434.24/x
  3. Step 3: Cross multiply
    3,477,040.72x = 5,215,479.68 × 918,434.24
  4. Step 4: Simplify right side
    3,477,040.72x = 4,790,075,116,136.24
  5. Step 5: Solve for x
    x = 4,790,075,116,136.24/3,477,040.72
  6. Step 6: Final answer
    x = 1,377,629.86

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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.