Home / 2,724,872.40-3,760,041.60-1,678,128

Finding the Fourth Proportional to 2,724,872.40, 3,760,041.60 and 1,678,128

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Solution

The fourth proportional to 2,724,872.40, 3,760,041.60 and 1,678,128 is: 2,315,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724,872.40 : 3,760,041.60 = 1,678,128 : x
  2. Step 2: Convert to fraction form
    2,724,872.40/3,760,041.60 = 1,678,128/x
  3. Step 3: Cross multiply
    2,724,872.40x = 3,760,041.60 × 1,678,128
  4. Step 4: Simplify right side
    2,724,872.40x = 6,309,831,090,124.80
  5. Step 5: Solve for x
    x = 6,309,831,090,124.80/2,724,872.40
  6. Step 6: Final answer
    x = 2,315,642.78

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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.