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Finding the Fourth Proportional to 612,018.38, 844,568.46 and 340,079.24

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Solution

The fourth proportional to 612,018.38, 844,568.46 and 340,079.24 is: 469,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,018.38 : 844,568.46 = 340,079.24 : x
  2. Step 2: Convert to fraction form
    612,018.38/844,568.46 = 340,079.24/x
  3. Step 3: Cross multiply
    612,018.38x = 844,568.46 × 340,079.24
  4. Step 4: Simplify right side
    612,018.38x = 287,220,200,004.77
  5. Step 5: Solve for x
    x = 287,220,200,004.77/612,018.38
  6. Step 6: Final answer
    x = 469,299.96

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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.