Home / 938,142.95-1,294,638.26-508,422.96

Finding the Fourth Proportional to 938,142.95, 1,294,638.26 and 508,422.96

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Solution

The fourth proportional to 938,142.95, 1,294,638.26 and 508,422.96 is: 701,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,142.95 : 1,294,638.26 = 508,422.96 : x
  2. Step 2: Convert to fraction form
    938,142.95/1,294,638.26 = 508,422.96/x
  3. Step 3: Cross multiply
    938,142.95x = 1,294,638.26 × 508,422.96
  4. Step 4: Simplify right side
    938,142.95x = 658,223,813,736.34
  5. Step 5: Solve for x
    x = 658,223,813,736.34/938,142.95
  6. Step 6: Final answer
    x = 701,624.22

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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.