Home / 489,801.23-734,985.60-205,466.63

Finding the Fourth Proportional to 489,801.23, 734,985.60 and 205,466.63

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Solution

The fourth proportional to 489,801.23, 734,985.60 and 205,466.63 is: 308,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,801.23 : 734,985.60 = 205,466.63 : x
  2. Step 2: Convert to fraction form
    489,801.23/734,985.60 = 205,466.63/x
  3. Step 3: Cross multiply
    489,801.23x = 734,985.60 × 205,466.63
  4. Step 4: Simplify right side
    489,801.23x = 151,015,009,885.10
  5. Step 5: Solve for x
    x = 151,015,009,885.10/489,801.23
  6. Step 6: Final answer
    x = 308,318.97

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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.