Home / 930.14-1,283.54-556.89

Finding the Fourth Proportional to 930.14, 1,283.54 and 556.89

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Solution

The fourth proportional to 930.14, 1,283.54 and 556.89 is: 768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.14 : 1,283.54 = 556.89 : x
  2. Step 2: Convert to fraction form
    930.14/1,283.54 = 556.89/x
  3. Step 3: Cross multiply
    930.14x = 1,283.54 × 556.89
  4. Step 4: Simplify right side
    930.14x = 714,787.81
  5. Step 5: Solve for x
    x = 714,787.81/930.14
  6. Step 6: Final answer
    x = 768.48

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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.