Home / 816,955.09-1,127,378.33-454,377.85

Finding the Fourth Proportional to 816,955.09, 1,127,378.33 and 454,377.85

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Solution

The fourth proportional to 816,955.09, 1,127,378.33 and 454,377.85 is: 627,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,955.09 : 1,127,378.33 = 454,377.85 : x
  2. Step 2: Convert to fraction form
    816,955.09/1,127,378.33 = 454,377.85/x
  3. Step 3: Cross multiply
    816,955.09x = 1,127,378.33 × 454,377.85
  4. Step 4: Simplify right side
    816,955.09x = 512,255,739,450.10
  5. Step 5: Solve for x
    x = 512,255,739,450.10/816,955.09
  6. Step 6: Final answer
    x = 627,030.48

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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.