Home / 656,376.84-905,968.56-427,504.44

Finding the Fourth Proportional to 656,376.84, 905,968.56 and 427,504.44

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Solution

The fourth proportional to 656,376.84, 905,968.56 and 427,504.44 is: 590,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,376.84 : 905,968.56 = 427,504.44 : x
  2. Step 2: Convert to fraction form
    656,376.84/905,968.56 = 427,504.44/x
  3. Step 3: Cross multiply
    656,376.84x = 905,968.56 × 427,504.44
  4. Step 4: Simplify right side
    656,376.84x = 387,305,581,900.41
  5. Step 5: Solve for x
    x = 387,305,581,900.41/656,376.84
  6. Step 6: Final answer
    x = 590,065.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.