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Finding the Fourth Proportional to 814,483.64, 1,124,647.80 and 508,916

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Solution

The fourth proportional to 814,483.64, 1,124,647.80 and 508,916 is: 702,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,483.64 : 1,124,647.80 = 508,916 : x
  2. Step 2: Convert to fraction form
    814,483.64/1,124,647.80 = 508,916/x
  3. Step 3: Cross multiply
    814,483.64x = 1,124,647.80 × 508,916
  4. Step 4: Simplify right side
    814,483.64x = 572,351,259,784.80
  5. Step 5: Solve for x
    x = 572,351,259,784.80/814,483.64
  6. Step 6: Final answer
    x = 702,716.71

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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.