Home / 1,028,125.10-1,418,969.34-641,003.32

Finding the Fourth Proportional to 1,028,125.10, 1,418,969.34 and 641,003.32

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Solution

The fourth proportional to 1,028,125.10, 1,418,969.34 and 641,003.32 is: 884,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,125.10 : 1,418,969.34 = 641,003.32 : x
  2. Step 2: Convert to fraction form
    1,028,125.10/1,418,969.34 = 641,003.32/x
  3. Step 3: Cross multiply
    1,028,125.10x = 1,418,969.34 × 641,003.32
  4. Step 4: Simplify right side
    1,028,125.10x = 909,564,059,691.92
  5. Step 5: Solve for x
    x = 909,564,059,691.92/1,028,125.10
  6. Step 6: Final answer
    x = 884,682.28

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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.