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Finding the Fourth Proportional to 648,262.66, 894,692.64 and 361,801.20

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Solution

The fourth proportional to 648,262.66, 894,692.64 and 361,801.20 is: 499,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,262.66 : 894,692.64 = 361,801.20 : x
  2. Step 2: Convert to fraction form
    648,262.66/894,692.64 = 361,801.20/x
  3. Step 3: Cross multiply
    648,262.66x = 894,692.64 × 361,801.20
  4. Step 4: Simplify right side
    648,262.66x = 323,700,868,427.24
  5. Step 5: Solve for x
    x = 323,700,868,427.24/648,262.66
  6. Step 6: Final answer
    x = 499,335.98

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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.