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Finding the Fourth Proportional to 651,646.98, 899,258.22 and 379,697.94

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Solution

The fourth proportional to 651,646.98, 899,258.22 and 379,697.94 is: 523,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,646.98 : 899,258.22 = 379,697.94 : x
  2. Step 2: Convert to fraction form
    651,646.98/899,258.22 = 379,697.94/x
  3. Step 3: Cross multiply
    651,646.98x = 899,258.22 × 379,697.94
  4. Step 4: Simplify right side
    651,646.98x = 341,446,493,662.07
  5. Step 5: Solve for x
    x = 341,446,493,662.07/651,646.98
  6. Step 6: Final answer
    x = 523,974.64

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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.