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Finding the Fourth Proportional to 524,185.68, 722,415.60 and 380,695.80

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Solution

The fourth proportional to 524,185.68, 722,415.60 and 380,695.80 is: 524,662.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,185.68 : 722,415.60 = 380,695.80 : x
  2. Step 2: Convert to fraction form
    524,185.68/722,415.60 = 380,695.80/x
  3. Step 3: Cross multiply
    524,185.68x = 722,415.60 × 380,695.80
  4. Step 4: Simplify right side
    524,185.68x = 275,020,584,774.48
  5. Step 5: Solve for x
    x = 275,020,584,774.48/524,185.68
  6. Step 6: Final answer
    x = 524,662.53

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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.