Home / 1,927,118.40-2,889,997.20-664,652.40

Finding the Fourth Proportional to 1,927,118.40, 2,889,997.20 and 664,652.40

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Solution

The fourth proportional to 1,927,118.40, 2,889,997.20 and 664,652.40 is: 996,743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,118.40 : 2,889,997.20 = 664,652.40 : x
  2. Step 2: Convert to fraction form
    1,927,118.40/2,889,997.20 = 664,652.40/x
  3. Step 3: Cross multiply
    1,927,118.40x = 2,889,997.20 × 664,652.40
  4. Step 4: Simplify right side
    1,927,118.40x = 1,920,843,574,973.28
  5. Step 5: Solve for x
    x = 1,920,843,574,973.28/1,927,118.40
  6. Step 6: Final answer
    x = 996,743.93

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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.