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Finding the Fourth Proportional to 1,977,026.08, 2,964,476.40 and 628,823.20

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Solution

The fourth proportional to 1,977,026.08, 2,964,476.40 and 628,823.20 is: 942,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,026.08 : 2,964,476.40 = 628,823.20 : x
  2. Step 2: Convert to fraction form
    1,977,026.08/2,964,476.40 = 628,823.20/x
  3. Step 3: Cross multiply
    1,977,026.08x = 2,964,476.40 × 628,823.20
  4. Step 4: Simplify right side
    1,977,026.08x = 1,864,131,536,172.48
  5. Step 5: Solve for x
    x = 1,864,131,536,172.48/1,977,026.08
  6. Step 6: Final answer
    x = 942,896.79

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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.