Home / 938,140.56-1,294,638.60-508,420.71

Finding the Fourth Proportional to 938,140.56, 1,294,638.60 and 508,420.71

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Solution

The fourth proportional to 938,140.56, 1,294,638.60 and 508,420.71 is: 701,623.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,140.56 : 1,294,638.60 = 508,420.71 : x
  2. Step 2: Convert to fraction form
    938,140.56/1,294,638.60 = 508,420.71/x
  3. Step 3: Cross multiply
    938,140.56x = 1,294,638.60 × 508,420.71
  4. Step 4: Simplify right side
    938,140.56x = 658,221,076,205.41
  5. Step 5: Solve for x
    x = 658,221,076,205.41/938,140.56
  6. Step 6: Final answer
    x = 701,623.09

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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.