Home / 1,781,939.60-2,456,697.68-1,415,632.16

Finding the Fourth Proportional to 1,781,939.60, 2,456,697.68 and 1,415,632.16

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Solution

The fourth proportional to 1,781,939.60, 2,456,697.68 and 1,415,632.16 is: 1,951,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,939.60 : 2,456,697.68 = 1,415,632.16 : x
  2. Step 2: Convert to fraction form
    1,781,939.60/2,456,697.68 = 1,415,632.16/x
  3. Step 3: Cross multiply
    1,781,939.60x = 2,456,697.68 × 1,415,632.16
  4. Step 4: Simplify right side
    1,781,939.60x = 3,477,780,243,205.39
  5. Step 5: Solve for x
    x = 3,477,780,243,205.39/1,781,939.60
  6. Step 6: Final answer
    x = 1,951,682.45

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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.