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Finding the Fourth Proportional to 540,630.36, 746,004.78 and 298,880.28

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Solution

The fourth proportional to 540,630.36, 746,004.78 and 298,880.28 is: 412,418.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,630.36 : 746,004.78 = 298,880.28 : x
  2. Step 2: Convert to fraction form
    540,630.36/746,004.78 = 298,880.28/x
  3. Step 3: Cross multiply
    540,630.36x = 746,004.78 × 298,880.28
  4. Step 4: Simplify right side
    540,630.36x = 222,966,117,527.74
  5. Step 5: Solve for x
    x = 222,966,117,527.74/540,630.36
  6. Step 6: Final answer
    x = 412,418.79

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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.