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Finding the Fourth Proportional to 535,568.71, 739,084.76 and 306,130.90

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Solution

The fourth proportional to 535,568.71, 739,084.76 and 306,130.90 is: 422,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,568.71 : 739,084.76 = 306,130.90 : x
  2. Step 2: Convert to fraction form
    535,568.71/739,084.76 = 306,130.90/x
  3. Step 3: Cross multiply
    535,568.71x = 739,084.76 × 306,130.90
  4. Step 4: Simplify right side
    535,568.71x = 226,256,682,755.08
  5. Step 5: Solve for x
    x = 226,256,682,755.08/535,568.71
  6. Step 6: Final answer
    x = 422,460.61

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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.