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Finding the Fourth Proportional to 495,603.48, 683,974.65 and 277,808.69

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Solution

The fourth proportional to 495,603.48, 683,974.65 and 277,808.69 is: 383,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,603.48 : 683,974.65 = 277,808.69 : x
  2. Step 2: Convert to fraction form
    495,603.48/683,974.65 = 277,808.69/x
  3. Step 3: Cross multiply
    495,603.48x = 683,974.65 × 277,808.69
  4. Step 4: Simplify right side
    495,603.48x = 190,014,098,089.84
  5. Step 5: Solve for x
    x = 190,014,098,089.84/495,603.48
  6. Step 6: Final answer
    x = 383,399.44

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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.