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Finding the Fourth Proportional to 664,296.32, 916,720.32 and 362,485.12

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Solution

The fourth proportional to 664,296.32, 916,720.32 and 362,485.12 is: 500,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,296.32 : 916,720.32 = 362,485.12 : x
  2. Step 2: Convert to fraction form
    664,296.32/916,720.32 = 362,485.12/x
  3. Step 3: Cross multiply
    664,296.32x = 916,720.32 × 362,485.12
  4. Step 4: Simplify right side
    664,296.32x = 332,297,475,201.64
  5. Step 5: Solve for x
    x = 332,297,475,201.64/664,296.32
  6. Step 6: Final answer
    x = 500,224.77

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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.