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Finding the Fourth Proportional to 665,827.07, 998,888.57 and 310,647.33

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Solution

The fourth proportional to 665,827.07, 998,888.57 and 310,647.33 is: 466,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,827.07 : 998,888.57 = 310,647.33 : x
  2. Step 2: Convert to fraction form
    665,827.07/998,888.57 = 310,647.33/x
  3. Step 3: Cross multiply
    665,827.07x = 998,888.57 × 310,647.33
  4. Step 4: Simplify right side
    665,827.07x = 310,302,065,684.78
  5. Step 5: Solve for x
    x = 310,302,065,684.78/665,827.07
  6. Step 6: Final answer
    x = 466,040.03

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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.