Home / 2,818,688.40-4,228,012.26-688,752.90

Finding the Fourth Proportional to 2,818,688.40, 4,228,012.26 and 688,752.90

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Solution

The fourth proportional to 2,818,688.40, 4,228,012.26 and 688,752.90 is: 1,033,124.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,688.40 : 4,228,012.26 = 688,752.90 : x
  2. Step 2: Convert to fraction form
    2,818,688.40/4,228,012.26 = 688,752.90/x
  3. Step 3: Cross multiply
    2,818,688.40x = 4,228,012.26 × 688,752.90
  4. Step 4: Simplify right side
    2,818,688.40x = 2,912,055,705,310.55
  5. Step 5: Solve for x
    x = 2,912,055,705,310.55/2,818,688.40
  6. Step 6: Final answer
    x = 1,033,124.38

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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.