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Finding the Fourth Proportional to 482,420.76, 665,728.86 and 267,559.32

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Solution

The fourth proportional to 482,420.76, 665,728.86 and 267,559.32 is: 369,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,420.76 : 665,728.86 = 267,559.32 : x
  2. Step 2: Convert to fraction form
    482,420.76/665,728.86 = 267,559.32/x
  3. Step 3: Cross multiply
    482,420.76x = 665,728.86 × 267,559.32
  4. Step 4: Simplify right side
    482,420.76x = 178,121,961,085.98
  5. Step 5: Solve for x
    x = 178,121,961,085.98/482,420.76
  6. Step 6: Final answer
    x = 369,225.32

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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.