Home / 938,148.59-1,294,649.66-508,428.70

Finding the Fourth Proportional to 938,148.59, 1,294,649.66 and 508,428.70

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Solution

The fourth proportional to 938,148.59, 1,294,649.66 and 508,428.70 is: 701,634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,148.59 : 1,294,649.66 = 508,428.70 : x
  2. Step 2: Convert to fraction form
    938,148.59/1,294,649.66 = 508,428.70/x
  3. Step 3: Cross multiply
    938,148.59x = 1,294,649.66 × 508,428.70
  4. Step 4: Simplify right side
    938,148.59x = 658,237,034,573.85
  5. Step 5: Solve for x
    x = 658,237,034,573.85/938,148.59
  6. Step 6: Final answer
    x = 701,634.09

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1.5x scale

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.