Home / 1,238,363.10-1,857,544.65-879,640.43

Finding the Fourth Proportional to 1,238,363.10, 1,857,544.65 and 879,640.43

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Solution

The fourth proportional to 1,238,363.10, 1,857,544.65 and 879,640.43 is: 1,319,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,363.10 : 1,857,544.65 = 879,640.43 : x
  2. Step 2: Convert to fraction form
    1,238,363.10/1,857,544.65 = 879,640.43/x
  3. Step 3: Cross multiply
    1,238,363.10x = 1,857,544.65 × 879,640.43
  4. Step 4: Simplify right side
    1,238,363.10x = 1,633,971,365,382.48
  5. Step 5: Solve for x
    x = 1,633,971,365,382.48/1,238,363.10
  6. Step 6: Final answer
    x = 1,319,460.64

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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.