Home / 1,291,036.88-1,781,193.48-923,203.28

Finding the Fourth Proportional to 1,291,036.88, 1,781,193.48 and 923,203.28

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Solution

The fourth proportional to 1,291,036.88, 1,781,193.48 and 923,203.28 is: 1,273,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,036.88 : 1,781,193.48 = 923,203.28 : x
  2. Step 2: Convert to fraction form
    1,291,036.88/1,781,193.48 = 923,203.28/x
  3. Step 3: Cross multiply
    1,291,036.88x = 1,781,193.48 × 923,203.28
  4. Step 4: Simplify right side
    1,291,036.88x = 1,644,403,663,050.61
  5. Step 5: Solve for x
    x = 1,644,403,663,050.61/1,291,036.88
  6. Step 6: Final answer
    x = 1,273,707.74

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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.