Home / 579,408.50-868,099.30-402,028.22

Finding the Fourth Proportional to 579,408.50, 868,099.30 and 402,028.22

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Solution

The fourth proportional to 579,408.50, 868,099.30 and 402,028.22 is: 602,339.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,408.50 : 868,099.30 = 402,028.22 : x
  2. Step 2: Convert to fraction form
    579,408.50/868,099.30 = 402,028.22/x
  3. Step 3: Cross multiply
    579,408.50x = 868,099.30 × 402,028.22
  4. Step 4: Simplify right side
    579,408.50x = 349,000,416,362.25
  5. Step 5: Solve for x
    x = 349,000,416,362.25/579,408.50
  6. Step 6: Final answer
    x = 602,339.14

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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.