Home / 1,939,607.28-2,904,926.87-1,872,346.78

Finding the Fourth Proportional to 1,939,607.28, 2,904,926.87 and 1,872,346.78

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Solution

The fourth proportional to 1,939,607.28, 2,904,926.87 and 1,872,346.78 is: 2,804,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,607.28 : 2,904,926.87 = 1,872,346.78 : x
  2. Step 2: Convert to fraction form
    1,939,607.28/2,904,926.87 = 1,872,346.78/x
  3. Step 3: Cross multiply
    1,939,607.28x = 2,904,926.87 × 1,872,346.78
  4. Step 4: Simplify right side
    1,939,607.28x = 5,439,030,470,140.83
  5. Step 5: Solve for x
    x = 5,439,030,470,140.83/1,939,607.28
  6. Step 6: Final answer
    x = 2,804,191.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.