Home / 872,279.66-1,203,569.42-509,633.40

Finding the Fourth Proportional to 872,279.66, 1,203,569.42 and 509,633.40

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Solution

The fourth proportional to 872,279.66, 1,203,569.42 and 509,633.40 is: 703,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,279.66 : 1,203,569.42 = 509,633.40 : x
  2. Step 2: Convert to fraction form
    872,279.66/1,203,569.42 = 509,633.40/x
  3. Step 3: Cross multiply
    872,279.66x = 1,203,569.42 × 509,633.40
  4. Step 4: Simplify right side
    872,279.66x = 613,379,175,650.63
  5. Step 5: Solve for x
    x = 613,379,175,650.63/872,279.66
  6. Step 6: Final answer
    x = 703,190.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.