Home / 921,896.40-1,382,844.60-904,181.70

Finding the Fourth Proportional to 921,896.40, 1,382,844.60 and 904,181.70

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Solution

The fourth proportional to 921,896.40, 1,382,844.60 and 904,181.70 is: 1,356,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,896.40 : 1,382,844.60 = 904,181.70 : x
  2. Step 2: Convert to fraction form
    921,896.40/1,382,844.60 = 904,181.70/x
  3. Step 3: Cross multiply
    921,896.40x = 1,382,844.60 × 904,181.70
  4. Step 4: Simplify right side
    921,896.40x = 1,250,342,781,263.82
  5. Step 5: Solve for x
    x = 1,250,342,781,263.82/921,896.40
  6. Step 6: Final answer
    x = 1,356,272.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.