Home / 1,528,611-2,111,641.56-1,224,705.48

Finding the Fourth Proportional to 1,528,611, 2,111,641.56 and 1,224,705.48

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Solution

The fourth proportional to 1,528,611, 2,111,641.56 and 1,224,705.48 is: 1,691,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,611 : 2,111,641.56 = 1,224,705.48 : x
  2. Step 2: Convert to fraction form
    1,528,611/2,111,641.56 = 1,224,705.48/x
  3. Step 3: Cross multiply
    1,528,611x = 2,111,641.56 × 1,224,705.48
  4. Step 4: Simplify right side
    1,528,611x = 2,586,138,990,327.75
  5. Step 5: Solve for x
    x = 2,586,138,990,327.75/1,528,611
  6. Step 6: Final answer
    x = 1,691,822.83

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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.