Home / 1,409,720.81-1,945,393.74-797,989.59

Finding the Fourth Proportional to 1,409,720.81, 1,945,393.74 and 797,989.59

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Solution

The fourth proportional to 1,409,720.81, 1,945,393.74 and 797,989.59 is: 1,101,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,720.81 : 1,945,393.74 = 797,989.59 : x
  2. Step 2: Convert to fraction form
    1,409,720.81/1,945,393.74 = 797,989.59/x
  3. Step 3: Cross multiply
    1,409,720.81x = 1,945,393.74 × 797,989.59
  4. Step 4: Simplify right side
    1,409,720.81x = 1,552,403,952,971.17
  5. Step 5: Solve for x
    x = 1,552,403,952,971.17/1,409,720.81
  6. Step 6: Final answer
    x = 1,101,213.76

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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.