Home / 987,727.56-1,363,056.74-557,999.88

Finding the Fourth Proportional to 987,727.56, 1,363,056.74 and 557,999.88

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Solution

The fourth proportional to 987,727.56, 1,363,056.74 and 557,999.88 is: 770,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,727.56 : 1,363,056.74 = 557,999.88 : x
  2. Step 2: Convert to fraction form
    987,727.56/1,363,056.74 = 557,999.88/x
  3. Step 3: Cross multiply
    987,727.56x = 1,363,056.74 × 557,999.88
  4. Step 4: Simplify right side
    987,727.56x = 760,585,497,353.19
  5. Step 5: Solve for x
    x = 760,585,497,353.19/987,727.56
  6. Step 6: Final answer
    x = 770,035.71

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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.