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Finding the Fourth Proportional to 490,904.10, 736,356.15 and 254,708.10

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Solution

The fourth proportional to 490,904.10, 736,356.15 and 254,708.10 is: 382,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,904.10 : 736,356.15 = 254,708.10 : x
  2. Step 2: Convert to fraction form
    490,904.10/736,356.15 = 254,708.10/x
  3. Step 3: Cross multiply
    490,904.10x = 736,356.15 × 254,708.10
  4. Step 4: Simplify right side
    490,904.10x = 187,555,875,889.82
  5. Step 5: Solve for x
    x = 187,555,875,889.82/490,904.10
  6. Step 6: Final answer
    x = 382,062.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.