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Finding the Fourth Proportional to 412,516.10, 618,774.65 and 112,999.26

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Solution

The fourth proportional to 412,516.10, 618,774.65 and 112,999.26 is: 169,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,516.10 : 618,774.65 = 112,999.26 : x
  2. Step 2: Convert to fraction form
    412,516.10/618,774.65 = 112,999.26/x
  3. Step 3: Cross multiply
    412,516.10x = 618,774.65 × 112,999.26
  4. Step 4: Simplify right side
    412,516.10x = 69,921,076,991.76
  5. Step 5: Solve for x
    x = 69,921,076,991.76/412,516.10
  6. Step 6: Final answer
    x = 169,499.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.