Home / 1,310,935.32-1,809,093.70-730,153.78

Finding the Fourth Proportional to 1,310,935.32, 1,809,093.70 and 730,153.78

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Solution

The fourth proportional to 1,310,935.32, 1,809,093.70 and 730,153.78 is: 1,007,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,935.32 : 1,809,093.70 = 730,153.78 : x
  2. Step 2: Convert to fraction form
    1,310,935.32/1,809,093.70 = 730,153.78/x
  3. Step 3: Cross multiply
    1,310,935.32x = 1,809,093.70 × 730,153.78
  4. Step 4: Simplify right side
    1,310,935.32x = 1,320,916,603,429.19
  5. Step 5: Solve for x
    x = 1,320,916,603,429.19/1,310,935.32
  6. Step 6: Final answer
    x = 1,007,613.86

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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.