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Finding the Fourth Proportional to 1,297,907.80, 1,946,861.70 and 941,248.60

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Solution

The fourth proportional to 1,297,907.80, 1,946,861.70 and 941,248.60 is: 1,411,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,907.80 : 1,946,861.70 = 941,248.60 : x
  2. Step 2: Convert to fraction form
    1,297,907.80/1,946,861.70 = 941,248.60/x
  3. Step 3: Cross multiply
    1,297,907.80x = 1,946,861.70 × 941,248.60
  4. Step 4: Simplify right side
    1,297,907.80x = 1,832,480,849,518.62
  5. Step 5: Solve for x
    x = 1,832,480,849,518.62/1,297,907.80
  6. Step 6: Final answer
    x = 1,411,872.90

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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.