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Finding the Fourth Proportional to 492,132.99, 679,145.54 and 277,276.17

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Solution

The fourth proportional to 492,132.99, 679,145.54 and 277,276.17 is: 382,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,132.99 : 679,145.54 = 277,276.17 : x
  2. Step 2: Convert to fraction form
    492,132.99/679,145.54 = 277,276.17/x
  3. Step 3: Cross multiply
    492,132.99x = 679,145.54 × 277,276.17
  4. Step 4: Simplify right side
    492,132.99x = 188,310,872,817.40
  5. Step 5: Solve for x
    x = 188,310,872,817.40/492,132.99
  6. Step 6: Final answer
    x = 382,642.25

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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.