Home / 720,126.75-1,079,985.99-298,881.39

Finding the Fourth Proportional to 720,126.75, 1,079,985.99 and 298,881.39

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Solution

The fourth proportional to 720,126.75, 1,079,985.99 and 298,881.39 is: 448,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,126.75 : 1,079,985.99 = 298,881.39 : x
  2. Step 2: Convert to fraction form
    720,126.75/1,079,985.99 = 298,881.39/x
  3. Step 3: Cross multiply
    720,126.75x = 1,079,985.99 × 298,881.39
  4. Step 4: Simplify right side
    720,126.75x = 322,787,713,871.73
  5. Step 5: Solve for x
    x = 322,787,713,871.73/720,126.75
  6. Step 6: Final answer
    x = 448,237.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.