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Finding the Fourth Proportional to 476,626.50, 657,802.94 and 275,422.50

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Solution

The fourth proportional to 476,626.50, 657,802.94 and 275,422.50 is: 380,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,626.50 : 657,802.94 = 275,422.50 : x
  2. Step 2: Convert to fraction form
    476,626.50/657,802.94 = 275,422.50/x
  3. Step 3: Cross multiply
    476,626.50x = 657,802.94 × 275,422.50
  4. Step 4: Simplify right side
    476,626.50x = 181,173,728,865.04
  5. Step 5: Solve for x
    x = 181,173,728,865.04/476,626.50
  6. Step 6: Final answer
    x = 380,116.78

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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.