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Finding the Fourth Proportional to 578,841.76, 868,509.84 and 298,555.84

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Solution

The fourth proportional to 578,841.76, 868,509.84 and 298,555.84 is: 447,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,841.76 : 868,509.84 = 298,555.84 : x
  2. Step 2: Convert to fraction form
    578,841.76/868,509.84 = 298,555.84/x
  3. Step 3: Cross multiply
    578,841.76x = 868,509.84 × 298,555.84
  4. Step 4: Simplify right side
    578,841.76x = 259,298,684,829.47
  5. Step 5: Solve for x
    x = 259,298,684,829.47/578,841.76
  6. Step 6: Final answer
    x = 447,961.26

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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.