Home / 1,329,834.64-1,995,032.24-431,206.36

Finding the Fourth Proportional to 1,329,834.64, 1,995,032.24 and 431,206.36

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Solution

The fourth proportional to 1,329,834.64, 1,995,032.24 and 431,206.36 is: 646,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,834.64 : 1,995,032.24 = 431,206.36 : x
  2. Step 2: Convert to fraction form
    1,329,834.64/1,995,032.24 = 431,206.36/x
  3. Step 3: Cross multiply
    1,329,834.64x = 1,995,032.24 × 431,206.36
  4. Step 4: Simplify right side
    1,329,834.64x = 860,270,590,293.05
  5. Step 5: Solve for x
    x = 860,270,590,293.05/1,329,834.64
  6. Step 6: Final answer
    x = 646,900.42

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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.