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Finding the Fourth Proportional to 899,648.86, 1,349,274.03 and 259,813.30

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Solution

The fourth proportional to 899,648.86, 1,349,274.03 and 259,813.30 is: 389,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,648.86 : 1,349,274.03 = 259,813.30 : x
  2. Step 2: Convert to fraction form
    899,648.86/1,349,274.03 = 259,813.30/x
  3. Step 3: Cross multiply
    899,648.86x = 1,349,274.03 × 259,813.30
  4. Step 4: Simplify right side
    899,648.86x = 350,559,338,338.60
  5. Step 5: Solve for x
    x = 350,559,338,338.60/899,648.86
  6. Step 6: Final answer
    x = 389,662.40

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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.