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Finding the Fourth Proportional to 443,501.60, 665,252.40 and 354,928.10

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Solution

The fourth proportional to 443,501.60, 665,252.40 and 354,928.10 is: 532,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,501.60 : 665,252.40 = 354,928.10 : x
  2. Step 2: Convert to fraction form
    443,501.60/665,252.40 = 354,928.10/x
  3. Step 3: Cross multiply
    443,501.60x = 665,252.40 × 354,928.10
  4. Step 4: Simplify right side
    443,501.60x = 236,116,770,352.44
  5. Step 5: Solve for x
    x = 236,116,770,352.44/443,501.60
  6. Step 6: Final answer
    x = 532,392.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.