Home / 1,056.49-1,583.87-440.65

Finding the Fourth Proportional to 1,056.49, 1,583.87 and 440.65

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Solution

The fourth proportional to 1,056.49, 1,583.87 and 440.65 is: 660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.49 : 1,583.87 = 440.65 : x
  2. Step 2: Convert to fraction form
    1,056.49/1,583.87 = 440.65/x
  3. Step 3: Cross multiply
    1,056.49x = 1,583.87 × 440.65
  4. Step 4: Simplify right side
    1,056.49x = 697,926.15
  5. Step 5: Solve for x
    x = 697,926.15/1,056.49
  6. Step 6: Final answer
    x = 660.61

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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.