Home / 579,743.40-870,003.90-342,834.60

Finding the Fourth Proportional to 579,743.40, 870,003.90 and 342,834.60

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Solution

The fourth proportional to 579,743.40, 870,003.90 and 342,834.60 is: 514,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,743.40 : 870,003.90 = 342,834.60 : x
  2. Step 2: Convert to fraction form
    579,743.40/870,003.90 = 342,834.60/x
  3. Step 3: Cross multiply
    579,743.40x = 870,003.90 × 342,834.60
  4. Step 4: Simplify right side
    579,743.40x = 298,267,439,054.94
  5. Step 5: Solve for x
    x = 298,267,439,054.94/579,743.40
  6. Step 6: Final answer
    x = 514,481.82

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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.