Home / 1,376,051.40-1,899,013.86-764,206.92

Finding the Fourth Proportional to 1,376,051.40, 1,899,013.86 and 764,206.92

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Solution

The fourth proportional to 1,376,051.40, 1,899,013.86 and 764,206.92 is: 1,054,640.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,051.40 : 1,899,013.86 = 764,206.92 : x
  2. Step 2: Convert to fraction form
    1,376,051.40/1,899,013.86 = 764,206.92/x
  3. Step 3: Cross multiply
    1,376,051.40x = 1,899,013.86 × 764,206.92
  4. Step 4: Simplify right side
    1,376,051.40x = 1,451,239,532,987.91
  5. Step 5: Solve for x
    x = 1,451,239,532,987.91/1,376,051.40
  6. Step 6: Final answer
    x = 1,054,640.50

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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.