Home / 1,376,107.20-1,899,027.84-772,494.72

Finding the Fourth Proportional to 1,376,107.20, 1,899,027.84 and 772,494.72

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Solution

The fourth proportional to 1,376,107.20, 1,899,027.84 and 772,494.72 is: 1,066,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,107.20 : 1,899,027.84 = 772,494.72 : x
  2. Step 2: Convert to fraction form
    1,376,107.20/1,899,027.84 = 772,494.72/x
  3. Step 3: Cross multiply
    1,376,107.20x = 1,899,027.84 × 772,494.72
  4. Step 4: Simplify right side
    1,376,107.20x = 1,466,988,979,533.01
  5. Step 5: Solve for x
    x = 1,466,988,979,533.01/1,376,107.20
  6. Step 6: Final answer
    x = 1,066,042.66

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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.