Home / 1,528,611.75-2,111,642.60-1,224,706.23

Finding the Fourth Proportional to 1,528,611.75, 2,111,642.60 and 1,224,706.23

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Solution

The fourth proportional to 1,528,611.75, 2,111,642.60 and 1,224,706.23 is: 1,691,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,611.75 : 2,111,642.60 = 1,224,706.23 : x
  2. Step 2: Convert to fraction form
    1,528,611.75/2,111,642.60 = 1,224,706.23/x
  3. Step 3: Cross multiply
    1,528,611.75x = 2,111,642.60 × 1,224,706.23
  4. Step 4: Simplify right side
    1,528,611.75x = 2,586,141,847,753.40
  5. Step 5: Solve for x
    x = 2,586,141,847,753.40/1,528,611.75
  6. Step 6: Final answer
    x = 1,691,823.87

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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.