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Finding the Fourth Proportional to 1,317,692.31, 1,818,402.66 and 736,909

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Solution

The fourth proportional to 1,317,692.31, 1,818,402.66 and 736,909 is: 1,016,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,692.31 : 1,818,402.66 = 736,909 : x
  2. Step 2: Convert to fraction form
    1,317,692.31/1,818,402.66 = 736,909/x
  3. Step 3: Cross multiply
    1,317,692.31x = 1,818,402.66 × 736,909
  4. Step 4: Simplify right side
    1,317,692.31x = 1,339,997,285,777.94
  5. Step 5: Solve for x
    x = 1,339,997,285,777.94/1,317,692.31
  6. Step 6: Final answer
    x = 1,016,927.30

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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.