Home / 947,778.31-1,422,928.64-498,814.48

Finding the Fourth Proportional to 947,778.31, 1,422,928.64 and 498,814.48

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Solution

The fourth proportional to 947,778.31, 1,422,928.64 and 498,814.48 is: 748,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,778.31 : 1,422,928.64 = 498,814.48 : x
  2. Step 2: Convert to fraction form
    947,778.31/1,422,928.64 = 498,814.48/x
  3. Step 3: Cross multiply
    947,778.31x = 1,422,928.64 × 498,814.48
  4. Step 4: Simplify right side
    947,778.31x = 709,777,409,638.71
  5. Step 5: Solve for x
    x = 709,777,409,638.71/947,778.31
  6. Step 6: Final answer
    x = 748,885.47

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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.