Home / 291,619.52-399,810.32-286,305.12

Finding the Fourth Proportional to 291,619.52, 399,810.32 and 286,305.12

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Solution

The fourth proportional to 291,619.52, 399,810.32 and 286,305.12 is: 392,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,619.52 : 399,810.32 = 286,305.12 : x
  2. Step 2: Convert to fraction form
    291,619.52/399,810.32 = 286,305.12/x
  3. Step 3: Cross multiply
    291,619.52x = 399,810.32 × 286,305.12
  4. Step 4: Simplify right side
    291,619.52x = 114,467,741,644.84
  5. Step 5: Solve for x
    x = 114,467,741,644.84/291,619.52
  6. Step 6: Final answer
    x = 392,524.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.