Home / 911,908.81-1,258,499.31-504,001.87

Finding the Fourth Proportional to 911,908.81, 1,258,499.31 and 504,001.87

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Solution

The fourth proportional to 911,908.81, 1,258,499.31 and 504,001.87 is: 695,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,908.81 : 1,258,499.31 = 504,001.87 : x
  2. Step 2: Convert to fraction form
    911,908.81/1,258,499.31 = 504,001.87/x
  3. Step 3: Cross multiply
    911,908.81x = 1,258,499.31 × 504,001.87
  4. Step 4: Simplify right side
    911,908.81x = 634,286,005,633.71
  5. Step 5: Solve for x
    x = 634,286,005,633.71/911,908.81
  6. Step 6: Final answer
    x = 695,558.59

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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.