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Finding the Fourth Proportional to 501,647, 692,272.86 and 275,292.50

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Solution

The fourth proportional to 501,647, 692,272.86 and 275,292.50 is: 379,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,647 : 692,272.86 = 275,292.50 : x
  2. Step 2: Convert to fraction form
    501,647/692,272.86 = 275,292.50/x
  3. Step 3: Cross multiply
    501,647x = 692,272.86 × 275,292.50
  4. Step 4: Simplify right side
    501,647x = 190,577,526,311.55
  5. Step 5: Solve for x
    x = 190,577,526,311.55/501,647
  6. Step 6: Final answer
    x = 379,903.65

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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.