Home / 2,672,943.40-4,009,415.10-989,828.20

Finding the Fourth Proportional to 2,672,943.40, 4,009,415.10 and 989,828.20

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Solution

The fourth proportional to 2,672,943.40, 4,009,415.10 and 989,828.20 is: 1,484,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,943.40 : 4,009,415.10 = 989,828.20 : x
  2. Step 2: Convert to fraction form
    2,672,943.40/4,009,415.10 = 989,828.20/x
  3. Step 3: Cross multiply
    2,672,943.40x = 4,009,415.10 × 989,828.20
  4. Step 4: Simplify right side
    2,672,943.40x = 3,968,632,131,485.82
  5. Step 5: Solve for x
    x = 3,968,632,131,485.82/2,672,943.40
  6. Step 6: Final answer
    x = 1,484,742.30

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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.