Home / 801,458.04-1,106,013.96-438,905.64

Finding the Fourth Proportional to 801,458.04, 1,106,013.96 and 438,905.64

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Solution

The fourth proportional to 801,458.04, 1,106,013.96 and 438,905.64 is: 605,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,458.04 : 1,106,013.96 = 438,905.64 : x
  2. Step 2: Convert to fraction form
    801,458.04/1,106,013.96 = 438,905.64/x
  3. Step 3: Cross multiply
    801,458.04x = 1,106,013.96 × 438,905.64
  4. Step 4: Simplify right side
    801,458.04x = 485,435,764,962.73
  5. Step 5: Solve for x
    x = 485,435,764,962.73/801,458.04
  6. Step 6: Final answer
    x = 605,690.80

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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.