Home / 1,342,782.76-2,013,952.68-431,919.64

Finding the Fourth Proportional to 1,342,782.76, 2,013,952.68 and 431,919.64

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Solution

The fourth proportional to 1,342,782.76, 2,013,952.68 and 431,919.64 is: 647,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,782.76 : 2,013,952.68 = 431,919.64 : x
  2. Step 2: Convert to fraction form
    1,342,782.76/2,013,952.68 = 431,919.64/x
  3. Step 3: Cross multiply
    1,342,782.76x = 2,013,952.68 × 431,919.64
  4. Step 4: Simplify right side
    1,342,782.76x = 869,865,716,522.64
  5. Step 5: Solve for x
    x = 869,865,716,522.64/1,342,782.76
  6. Step 6: Final answer
    x = 647,808.23

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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.