Home / 1,388,408.10-1,915,437.93-904,797.06

Finding the Fourth Proportional to 1,388,408.10, 1,915,437.93 and 904,797.06

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Solution

The fourth proportional to 1,388,408.10, 1,915,437.93 and 904,797.06 is: 1,248,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,408.10 : 1,915,437.93 = 904,797.06 : x
  2. Step 2: Convert to fraction form
    1,388,408.10/1,915,437.93 = 904,797.06/x
  3. Step 3: Cross multiply
    1,388,408.10x = 1,915,437.93 × 904,797.06
  4. Step 4: Simplify right side
    1,388,408.10x = 1,733,082,607,676.49
  5. Step 5: Solve for x
    x = 1,733,082,607,676.49/1,388,408.10
  6. Step 6: Final answer
    x = 1,248,251.58

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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.