Home / 2,185,611.36-3,278,417.04-689,820

Finding the Fourth Proportional to 2,185,611.36, 3,278,417.04 and 689,820

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Solution

The fourth proportional to 2,185,611.36, 3,278,417.04 and 689,820 is: 1,034,730

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,611.36 : 3,278,417.04 = 689,820 : x
  2. Step 2: Convert to fraction form
    2,185,611.36/3,278,417.04 = 689,820/x
  3. Step 3: Cross multiply
    2,185,611.36x = 3,278,417.04 × 689,820
  4. Step 4: Simplify right side
    2,185,611.36x = 2,261,517,642,532.80
  5. Step 5: Solve for x
    x = 2,261,517,642,532.80/2,185,611.36
  6. Step 6: Final answer
    x = 1,034,730

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Similar ratio
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1.5x scale

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.