Home / 1,220,730.85-1,684,628.79-676,889.56

Finding the Fourth Proportional to 1,220,730.85, 1,684,628.79 and 676,889.56

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Solution

The fourth proportional to 1,220,730.85, 1,684,628.79 and 676,889.56 is: 934,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,730.85 : 1,684,628.79 = 676,889.56 : x
  2. Step 2: Convert to fraction form
    1,220,730.85/1,684,628.79 = 676,889.56/x
  3. Step 3: Cross multiply
    1,220,730.85x = 1,684,628.79 × 676,889.56
  4. Step 4: Simplify right side
    1,220,730.85x = 1,140,307,639,993.88
  5. Step 5: Solve for x
    x = 1,140,307,639,993.88/1,220,730.85
  6. Step 6: Final answer
    x = 934,118.80

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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.