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Finding the Fourth Proportional to 490,969.01, 677,477.72 and 273,126.21

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Solution

The fourth proportional to 490,969.01, 677,477.72 and 273,126.21 is: 376,881.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,969.01 : 677,477.72 = 273,126.21 : x
  2. Step 2: Convert to fraction form
    490,969.01/677,477.72 = 273,126.21/x
  3. Step 3: Cross multiply
    490,969.01x = 677,477.72 × 273,126.21
  4. Step 4: Simplify right side
    490,969.01x = 185,036,920,657.41
  5. Step 5: Solve for x
    x = 185,036,920,657.41/490,969.01
  6. Step 6: Final answer
    x = 376,881.06

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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.