Home / 525,004.40-786,988.20-258,546.80

Finding the Fourth Proportional to 525,004.40, 786,988.20 and 258,546.80

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Solution

The fourth proportional to 525,004.40, 786,988.20 and 258,546.80 is: 387,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,004.40 : 786,988.20 = 258,546.80 : x
  2. Step 2: Convert to fraction form
    525,004.40/786,988.20 = 258,546.80/x
  3. Step 3: Cross multiply
    525,004.40x = 786,988.20 × 258,546.80
  4. Step 4: Simplify right side
    525,004.40x = 203,473,280,747.76
  5. Step 5: Solve for x
    x = 203,473,280,747.76/525,004.40
  6. Step 6: Final answer
    x = 387,564.91

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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.