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Finding the Fourth Proportional to 495,408.48, 683,667.72 and 269,055.60

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Solution

The fourth proportional to 495,408.48, 683,667.72 and 269,055.60 is: 371,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,408.48 : 683,667.72 = 269,055.60 : x
  2. Step 2: Convert to fraction form
    495,408.48/683,667.72 = 269,055.60/x
  3. Step 3: Cross multiply
    495,408.48x = 683,667.72 × 269,055.60
  4. Step 4: Simplify right side
    495,408.48x = 183,944,628,605.23
  5. Step 5: Solve for x
    x = 183,944,628,605.23/495,408.48
  6. Step 6: Final answer
    x = 371,298.91

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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.