Home / 1,215,712.86-1,677,717.27-671,883.90

Finding the Fourth Proportional to 1,215,712.86, 1,677,717.27 and 671,883.90

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Solution

The fourth proportional to 1,215,712.86, 1,677,717.27 and 671,883.90 is: 927,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,712.86 : 1,677,717.27 = 671,883.90 : x
  2. Step 2: Convert to fraction form
    1,215,712.86/1,677,717.27 = 671,883.90/x
  3. Step 3: Cross multiply
    1,215,712.86x = 1,677,717.27 × 671,883.90
  4. Step 4: Simplify right side
    1,215,712.86x = 1,127,231,222,464.95
  5. Step 5: Solve for x
    x = 1,127,231,222,464.95/1,215,712.86
  6. Step 6: Final answer
    x = 927,218.31

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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.