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Finding the Fourth Proportional to 869,393.40, 1,304,090.10 and 837,900.60

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Solution

The fourth proportional to 869,393.40, 1,304,090.10 and 837,900.60 is: 1,256,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,393.40 : 1,304,090.10 = 837,900.60 : x
  2. Step 2: Convert to fraction form
    869,393.40/1,304,090.10 = 837,900.60/x
  3. Step 3: Cross multiply
    869,393.40x = 1,304,090.10 × 837,900.60
  4. Step 4: Simplify right side
    869,393.40x = 1,092,697,877,244.06
  5. Step 5: Solve for x
    x = 1,092,697,877,244.06/869,393.40
  6. Step 6: Final answer
    x = 1,256,850.90

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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.