Home / 658,492.21-987,060.34-258,971.05

Finding the Fourth Proportional to 658,492.21, 987,060.34 and 258,971.05

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Solution

The fourth proportional to 658,492.21, 987,060.34 and 258,971.05 is: 388,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,492.21 : 987,060.34 = 258,971.05 : x
  2. Step 2: Convert to fraction form
    658,492.21/987,060.34 = 258,971.05/x
  3. Step 3: Cross multiply
    658,492.21x = 987,060.34 × 258,971.05
  4. Step 4: Simplify right side
    658,492.21x = 255,620,052,663.16
  5. Step 5: Solve for x
    x = 255,620,052,663.16/658,492.21
  6. Step 6: Final answer
    x = 388,189.94

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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.