Home / 987,749.64-1,481,831.01-561,481.47

Finding the Fourth Proportional to 987,749.64, 1,481,831.01 and 561,481.47

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Solution

The fourth proportional to 987,749.64, 1,481,831.01 and 561,481.47 is: 842,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,749.64 : 1,481,831.01 = 561,481.47 : x
  2. Step 2: Convert to fraction form
    987,749.64/1,481,831.01 = 561,481.47/x
  3. Step 3: Cross multiply
    987,749.64x = 1,481,831.01 × 561,481.47
  4. Step 4: Simplify right side
    987,749.64x = 832,020,653,786.39
  5. Step 5: Solve for x
    x = 832,020,653,786.39/987,749.64
  6. Step 6: Final answer
    x = 842,339.62

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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.