Home / 1,485,175.32-2,227,406.10-685,689.12

Finding the Fourth Proportional to 1,485,175.32, 2,227,406.10 and 685,689.12

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Solution

The fourth proportional to 1,485,175.32, 2,227,406.10 and 685,689.12 is: 1,028,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,175.32 : 2,227,406.10 = 685,689.12 : x
  2. Step 2: Convert to fraction form
    1,485,175.32/2,227,406.10 = 685,689.12/x
  3. Step 3: Cross multiply
    1,485,175.32x = 2,227,406.10 × 685,689.12
  4. Step 4: Simplify right side
    1,485,175.32x = 1,527,308,128,591.63
  5. Step 5: Solve for x
    x = 1,527,308,128,591.63/1,485,175.32
  6. Step 6: Final answer
    x = 1,028,368.91

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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.