Home / 579,557.80-869,768.70-298,930.60

Finding the Fourth Proportional to 579,557.80, 869,768.70 and 298,930.60

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Solution

The fourth proportional to 579,557.80, 869,768.70 and 298,930.60 is: 448,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,557.80 : 869,768.70 = 298,930.60 : x
  2. Step 2: Convert to fraction form
    579,557.80/869,768.70 = 298,930.60/x
  3. Step 3: Cross multiply
    579,557.80x = 869,768.70 × 298,930.60
  4. Step 4: Simplify right side
    579,557.80x = 260,000,479,352.22
  5. Step 5: Solve for x
    x = 260,000,479,352.22/579,557.80
  6. Step 6: Final answer
    x = 448,618.72

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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.