Home / 1,378,538.04-1,902,382.38-774,926.04

Finding the Fourth Proportional to 1,378,538.04, 1,902,382.38 and 774,926.04

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Solution

The fourth proportional to 1,378,538.04, 1,902,382.38 and 774,926.04 is: 1,069,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,538.04 : 1,902,382.38 = 774,926.04 : x
  2. Step 2: Convert to fraction form
    1,378,538.04/1,902,382.38 = 774,926.04/x
  3. Step 3: Cross multiply
    1,378,538.04x = 1,902,382.38 × 774,926.04
  4. Step 4: Simplify right side
    1,378,538.04x = 1,474,205,644,299.18
  5. Step 5: Solve for x
    x = 1,474,205,644,299.18/1,378,538.04
  6. Step 6: Final answer
    x = 1,069,397.87

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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.