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Finding the Fourth Proportional to 2,966,978.89, 4,450,421.49 and 945,205.53

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Solution

The fourth proportional to 2,966,978.89, 4,450,421.49 and 945,205.53 is: 1,417,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966,978.89 : 4,450,421.49 = 945,205.53 : x
  2. Step 2: Convert to fraction form
    2,966,978.89/4,450,421.49 = 945,205.53/x
  3. Step 3: Cross multiply
    2,966,978.89x = 4,450,421.49 × 945,205.53
  4. Step 4: Simplify right side
    2,966,978.89x = 4,206,563,003,178.84
  5. Step 5: Solve for x
    x = 4,206,563,003,178.84/2,966,978.89
  6. Step 6: Final answer
    x = 1,417,793.37

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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.