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Finding the Fourth Proportional to 559,879.20, 839,818.80 and 335,930.40

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Solution

The fourth proportional to 559,879.20, 839,818.80 and 335,930.40 is: 503,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,879.20 : 839,818.80 = 335,930.40 : x
  2. Step 2: Convert to fraction form
    559,879.20/839,818.80 = 335,930.40/x
  3. Step 3: Cross multiply
    559,879.20x = 839,818.80 × 335,930.40
  4. Step 4: Simplify right side
    559,879.20x = 282,120,665,411.52
  5. Step 5: Solve for x
    x = 282,120,665,411.52/559,879.20
  6. Step 6: Final answer
    x = 503,895.60

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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.