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Finding the Fourth Proportional to 539,461.92, 744,481.72 and 310,093.68

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Solution

The fourth proportional to 539,461.92, 744,481.72 and 310,093.68 is: 427,943.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,461.92 : 744,481.72 = 310,093.68 : x
  2. Step 2: Convert to fraction form
    539,461.92/744,481.72 = 310,093.68/x
  3. Step 3: Cross multiply
    539,461.92x = 744,481.72 × 310,093.68
  4. Step 4: Simplify right side
    539,461.92x = 230,859,076,247.53
  5. Step 5: Solve for x
    x = 230,859,076,247.53/539,461.92
  6. Step 6: Final answer
    x = 427,943.23

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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.