Home / 1,238,544.57-1,857,264.42-429,004.65

Finding the Fourth Proportional to 1,238,544.57, 1,857,264.42 and 429,004.65

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Solution

The fourth proportional to 1,238,544.57, 1,857,264.42 and 429,004.65 is: 643,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,544.57 : 1,857,264.42 = 429,004.65 : x
  2. Step 2: Convert to fraction form
    1,238,544.57/1,857,264.42 = 429,004.65/x
  3. Step 3: Cross multiply
    1,238,544.57x = 1,857,264.42 × 429,004.65
  4. Step 4: Simplify right side
    1,238,544.57x = 796,775,072,459.55
  5. Step 5: Solve for x
    x = 796,775,072,459.55/1,238,544.57
  6. Step 6: Final answer
    x = 643,315.62

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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.