Home / 1,378,644.16-1,902,699.84-775,032.16

Finding the Fourth Proportional to 1,378,644.16, 1,902,699.84 and 775,032.16

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Solution

The fourth proportional to 1,378,644.16, 1,902,699.84 and 775,032.16 is: 1,069,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,644.16 : 1,902,699.84 = 775,032.16 : x
  2. Step 2: Convert to fraction form
    1,378,644.16/1,902,699.84 = 775,032.16/x
  3. Step 3: Cross multiply
    1,378,644.16x = 1,902,699.84 × 775,032.16
  4. Step 4: Simplify right side
    1,378,644.16x = 1,474,653,566,826.85
  5. Step 5: Solve for x
    x = 1,474,653,566,826.85/1,378,644.16
  6. Step 6: Final answer
    x = 1,069,640.46

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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.