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Finding the Fourth Proportional to 3,129,338.88, 4,693,775.04 and 999,648

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Solution

The fourth proportional to 3,129,338.88, 4,693,775.04 and 999,648 is: 1,499,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,338.88 : 4,693,775.04 = 999,648 : x
  2. Step 2: Convert to fraction form
    3,129,338.88/4,693,775.04 = 999,648/x
  3. Step 3: Cross multiply
    3,129,338.88x = 4,693,775.04 × 999,648
  4. Step 4: Simplify right side
    3,129,338.88x = 4,692,122,831,185.92
  5. Step 5: Solve for x
    x = 4,692,122,831,185.92/3,129,338.88
  6. Step 6: Final answer
    x = 1,499,397.48

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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.