Home / 2,121,856.20-2,928,239.10-1,154,939.76

Finding the Fourth Proportional to 2,121,856.20, 2,928,239.10 and 1,154,939.76

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Solution

The fourth proportional to 2,121,856.20, 2,928,239.10 and 1,154,939.76 is: 1,593,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,856.20 : 2,928,239.10 = 1,154,939.76 : x
  2. Step 2: Convert to fraction form
    2,121,856.20/2,928,239.10 = 1,154,939.76/x
  3. Step 3: Cross multiply
    2,121,856.20x = 2,928,239.10 × 1,154,939.76
  4. Step 4: Simplify right side
    2,121,856.20x = 3,381,939,763,376.62
  5. Step 5: Solve for x
    x = 3,381,939,763,376.62/2,121,856.20
  6. Step 6: Final answer
    x = 1,593,859.08

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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.