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Finding the Fourth Proportional to 803,993.94, 1,109,461.91 and 441,415.76

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Solution

The fourth proportional to 803,993.94, 1,109,461.91 and 441,415.76 is: 609,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,993.94 : 1,109,461.91 = 441,415.76 : x
  2. Step 2: Convert to fraction form
    803,993.94/1,109,461.91 = 441,415.76/x
  3. Step 3: Cross multiply
    803,993.94x = 1,109,461.91 × 441,415.76
  4. Step 4: Simplify right side
    803,993.94x = 489,733,964,439.31
  5. Step 5: Solve for x
    x = 489,733,964,439.31/803,993.94
  6. Step 6: Final answer
    x = 609,126.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.