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Finding the Fourth Proportional to 1,276.04, 1,913.69 and 582.35

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Solution

The fourth proportional to 1,276.04, 1,913.69 and 582.35 is: 873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.04 : 1,913.69 = 582.35 : x
  2. Step 2: Convert to fraction form
    1,276.04/1,913.69 = 582.35/x
  3. Step 3: Cross multiply
    1,276.04x = 1,913.69 × 582.35
  4. Step 4: Simplify right side
    1,276.04x = 1,114,424.89
  5. Step 5: Solve for x
    x = 1,114,424.89/1,276.04
  6. Step 6: Final answer
    x = 873.35

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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.