Home / 1,215,867.78-1,677,845.34-671,975.46

Finding the Fourth Proportional to 1,215,867.78, 1,677,845.34 and 671,975.46

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Solution

The fourth proportional to 1,215,867.78, 1,677,845.34 and 671,975.46 is: 927,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,867.78 : 1,677,845.34 = 671,975.46 : x
  2. Step 2: Convert to fraction form
    1,215,867.78/1,677,845.34 = 671,975.46/x
  3. Step 3: Cross multiply
    1,215,867.78x = 1,677,845.34 × 671,975.46
  4. Step 4: Simplify right side
    1,215,867.78x = 1,127,470,894,155.36
  5. Step 5: Solve for x
    x = 1,127,470,894,155.36/1,215,867.78
  6. Step 6: Final answer
    x = 927,297.29

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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.