Home / 1,397,473.70-1,928,380.77-816,832.95

Finding the Fourth Proportional to 1,397,473.70, 1,928,380.77 and 816,832.95

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Solution

The fourth proportional to 1,397,473.70, 1,928,380.77 and 816,832.95 is: 1,127,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,473.70 : 1,928,380.77 = 816,832.95 : x
  2. Step 2: Convert to fraction form
    1,397,473.70/1,928,380.77 = 816,832.95/x
  3. Step 3: Cross multiply
    1,397,473.70x = 1,928,380.77 × 816,832.95
  4. Step 4: Simplify right side
    1,397,473.70x = 1,575,164,953,082.37
  5. Step 5: Solve for x
    x = 1,575,164,953,082.37/1,397,473.70
  6. Step 6: Final answer
    x = 1,127,151.77

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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.