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Finding the Fourth Proportional to 492,066.78, 679,054.23 and 277,209.42

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Solution

The fourth proportional to 492,066.78, 679,054.23 and 277,209.42 is: 382,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,066.78 : 679,054.23 = 277,209.42 : x
  2. Step 2: Convert to fraction form
    492,066.78/679,054.23 = 277,209.42/x
  3. Step 3: Cross multiply
    492,066.78x = 679,054.23 × 277,209.42
  4. Step 4: Simplify right side
    492,066.78x = 188,240,229,246.85
  5. Step 5: Solve for x
    x = 188,240,229,246.85/492,066.78
  6. Step 6: Final answer
    x = 382,550.17

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1.5x scale

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.