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Finding the Fourth Proportional to 478,965.96, 660,960 and 264,102.12

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Solution

The fourth proportional to 478,965.96, 660,960 and 264,102.12 is: 364,453.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,965.96 : 660,960 = 264,102.12 : x
  2. Step 2: Convert to fraction form
    478,965.96/660,960 = 264,102.12/x
  3. Step 3: Cross multiply
    478,965.96x = 660,960 × 264,102.12
  4. Step 4: Simplify right side
    478,965.96x = 174,560,937,235.20
  5. Step 5: Solve for x
    x = 174,560,937,235.20/478,965.96
  6. Step 6: Final answer
    x = 364,453.74

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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.