Home / 1,380,627.84-1,904,651.52-807,415.14

Finding the Fourth Proportional to 1,380,627.84, 1,904,651.52 and 807,415.14

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Solution

The fourth proportional to 1,380,627.84, 1,904,651.52 and 807,415.14 is: 1,113,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,627.84 : 1,904,651.52 = 807,415.14 : x
  2. Step 2: Convert to fraction form
    1,380,627.84/1,904,651.52 = 807,415.14/x
  3. Step 3: Cross multiply
    1,380,627.84x = 1,904,651.52 × 807,415.14
  4. Step 4: Simplify right side
    1,380,627.84x = 1,537,844,473,672.01
  5. Step 5: Solve for x
    x = 1,537,844,473,672.01/1,380,627.84
  6. Step 6: Final answer
    x = 1,113,873.29

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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.