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Finding the Fourth Proportional to 664,420.44, 916,887.42 and 362,616.60

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Solution

The fourth proportional to 664,420.44, 916,887.42 and 362,616.60 is: 500,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,420.44 : 916,887.42 = 362,616.60 : x
  2. Step 2: Convert to fraction form
    664,420.44/916,887.42 = 362,616.60/x
  3. Step 3: Cross multiply
    664,420.44x = 916,887.42 × 362,616.60
  4. Step 4: Simplify right side
    664,420.44x = 332,478,598,823.17
  5. Step 5: Solve for x
    x = 332,478,598,823.17/664,420.44
  6. Step 6: Final answer
    x = 500,403.93

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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.