Home / 1,220,555.44-1,684,465.77-676,861.57

Finding the Fourth Proportional to 1,220,555.44, 1,684,465.77 and 676,861.57

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Solution

The fourth proportional to 1,220,555.44, 1,684,465.77 and 676,861.57 is: 934,124.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,555.44 : 1,684,465.77 = 676,861.57 : x
  2. Step 2: Convert to fraction form
    1,220,555.44/1,684,465.77 = 676,861.57/x
  3. Step 3: Cross multiply
    1,220,555.44x = 1,684,465.77 × 676,861.57
  4. Step 4: Simplify right side
    1,220,555.44x = 1,140,150,145,693.46
  5. Step 5: Solve for x
    x = 1,140,150,145,693.46/1,220,555.44
  6. Step 6: Final answer
    x = 934,124.01

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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.