Home / 945,664.80-1,418,497.20-919,420.80

Finding the Fourth Proportional to 945,664.80, 1,418,497.20 and 919,420.80

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Solution

The fourth proportional to 945,664.80, 1,418,497.20 and 919,420.80 is: 1,379,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,664.80 : 1,418,497.20 = 919,420.80 : x
  2. Step 2: Convert to fraction form
    945,664.80/1,418,497.20 = 919,420.80/x
  3. Step 3: Cross multiply
    945,664.80x = 1,418,497.20 × 919,420.80
  4. Step 4: Simplify right side
    945,664.80x = 1,304,195,830,421.76
  5. Step 5: Solve for x
    x = 1,304,195,830,421.76/945,664.80
  6. Step 6: Final answer
    x = 1,379,131.20

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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.