Home / 2,818,474.90-4,227,692.10-688,539.40

Finding the Fourth Proportional to 2,818,474.90, 4,227,692.10 and 688,539.40

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Solution

The fourth proportional to 2,818,474.90, 4,227,692.10 and 688,539.40 is: 1,032,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,474.90 : 4,227,692.10 = 688,539.40 : x
  2. Step 2: Convert to fraction form
    2,818,474.90/4,227,692.10 = 688,539.40/x
  3. Step 3: Cross multiply
    2,818,474.90x = 4,227,692.10 × 688,539.40
  4. Step 4: Simplify right side
    2,818,474.90x = 2,910,932,581,918.74
  5. Step 5: Solve for x
    x = 2,910,932,581,918.74/2,818,474.90
  6. Step 6: Final answer
    x = 1,032,804.15

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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.