Home / 3,315,916.47-4,973,874.39-919,761.21

Finding the Fourth Proportional to 3,315,916.47, 4,973,874.39 and 919,761.21

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Solution

The fourth proportional to 3,315,916.47, 4,973,874.39 and 919,761.21 is: 1,379,641.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,916.47 : 4,973,874.39 = 919,761.21 : x
  2. Step 2: Convert to fraction form
    3,315,916.47/4,973,874.39 = 919,761.21/x
  3. Step 3: Cross multiply
    3,315,916.47x = 4,973,874.39 × 919,761.21
  4. Step 4: Simplify right side
    3,315,916.47x = 4,574,776,727,334.41
  5. Step 5: Solve for x
    x = 4,574,776,727,334.41/3,315,916.47
  6. Step 6: Final answer
    x = 1,379,641.73

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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.