Home / 987,917.97-1,363,318.24-535,207.89

Finding the Fourth Proportional to 987,917.97, 1,363,318.24 and 535,207.89

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Solution

The fourth proportional to 987,917.97, 1,363,318.24 and 535,207.89 is: 738,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,917.97 : 1,363,318.24 = 535,207.89 : x
  2. Step 2: Convert to fraction form
    987,917.97/1,363,318.24 = 535,207.89/x
  3. Step 3: Cross multiply
    987,917.97x = 1,363,318.24 × 535,207.89
  4. Step 4: Simplify right side
    987,917.97x = 729,658,678,628.91
  5. Step 5: Solve for x
    x = 729,658,678,628.91/987,917.97
  6. Step 6: Final answer
    x = 738,582.25

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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.