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Finding the Fourth Proportional to 3,315,927.93, 4,973,891.88 and 919,772.57

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Solution

The fourth proportional to 3,315,927.93, 4,973,891.88 and 919,772.57 is: 1,379,658.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,927.93 : 4,973,891.88 = 919,772.57 : x
  2. Step 2: Convert to fraction form
    3,315,927.93/4,973,891.88 = 919,772.57/x
  3. Step 3: Cross multiply
    3,315,927.93x = 4,973,891.88 × 919,772.57
  4. Step 4: Simplify right side
    3,315,927.93x = 4,574,849,292,500.27
  5. Step 5: Solve for x
    x = 4,574,849,292,500.27/3,315,927.93
  6. Step 6: Final answer
    x = 1,379,658.84

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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.