Home / 579,564.18-799,722.40-321,438.04

Finding the Fourth Proportional to 579,564.18, 799,722.40 and 321,438.04

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Solution

The fourth proportional to 579,564.18, 799,722.40 and 321,438.04 is: 443,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,564.18 : 799,722.40 = 321,438.04 : x
  2. Step 2: Convert to fraction form
    579,564.18/799,722.40 = 321,438.04/x
  3. Step 3: Cross multiply
    579,564.18x = 799,722.40 × 321,438.04
  4. Step 4: Simplify right side
    579,564.18x = 257,061,200,800.10
  5. Step 5: Solve for x
    x = 257,061,200,800.10/579,564.18
  6. Step 6: Final answer
    x = 443,542.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.