Home / 1,319,823.75-1,821,356.78-716,211.75

Finding the Fourth Proportional to 1,319,823.75, 1,821,356.78 and 716,211.75

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Solution

The fourth proportional to 1,319,823.75, 1,821,356.78 and 716,211.75 is: 988,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,823.75 : 1,821,356.78 = 716,211.75 : x
  2. Step 2: Convert to fraction form
    1,319,823.75/1,821,356.78 = 716,211.75/x
  3. Step 3: Cross multiply
    1,319,823.75x = 1,821,356.78 × 716,211.75
  4. Step 4: Simplify right side
    1,319,823.75x = 1,304,477,126,778.17
  5. Step 5: Solve for x
    x = 1,304,477,126,778.17/1,319,823.75
  6. Step 6: Final answer
    x = 988,372.22

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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.