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Finding the Fourth Proportional to 455,558.40, 682,534.08 and 277,643.52

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Solution

The fourth proportional to 455,558.40, 682,534.08 and 277,643.52 is: 415,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,558.40 : 682,534.08 = 277,643.52 : x
  2. Step 2: Convert to fraction form
    455,558.40/682,534.08 = 277,643.52/x
  3. Step 3: Cross multiply
    455,558.40x = 682,534.08 × 277,643.52
  4. Step 4: Simplify right side
    455,558.40x = 189,501,164,491.16
  5. Step 5: Solve for x
    x = 189,501,164,491.16/455,558.40
  6. Step 6: Final answer
    x = 415,975.57

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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.