Home / 1,298,611.72-1,792,049.79-725,656.60

Finding the Fourth Proportional to 1,298,611.72, 1,792,049.79 and 725,656.60

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Solution

The fourth proportional to 1,298,611.72, 1,792,049.79 and 725,656.60 is: 1,001,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,611.72 : 1,792,049.79 = 725,656.60 : x
  2. Step 2: Convert to fraction form
    1,298,611.72/1,792,049.79 = 725,656.60/x
  3. Step 3: Cross multiply
    1,298,611.72x = 1,792,049.79 × 725,656.60
  4. Step 4: Simplify right side
    1,298,611.72x = 1,300,412,757,642.11
  5. Step 5: Solve for x
    x = 1,300,412,757,642.11/1,298,611.72
  6. Step 6: Final answer
    x = 1,001,386.89

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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.