Home / 909,970.72-1,256,162.24-587,837.76

Finding the Fourth Proportional to 909,970.72, 1,256,162.24 and 587,837.76

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Solution

The fourth proportional to 909,970.72, 1,256,162.24 and 587,837.76 is: 811,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,970.72 : 1,256,162.24 = 587,837.76 : x
  2. Step 2: Convert to fraction form
    909,970.72/1,256,162.24 = 587,837.76/x
  3. Step 3: Cross multiply
    909,970.72x = 1,256,162.24 × 587,837.76
  4. Step 4: Simplify right side
    909,970.72x = 738,419,597,358.18
  5. Step 5: Solve for x
    x = 738,419,597,358.18/909,970.72
  6. Step 6: Final answer
    x = 811,476.22

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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.