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Finding the Fourth Proportional to 533,218.10, 735,849.71 and 318,376.94

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Solution

The fourth proportional to 533,218.10, 735,849.71 and 318,376.94 is: 439,365.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,218.10 : 735,849.71 = 318,376.94 : x
  2. Step 2: Convert to fraction form
    533,218.10/735,849.71 = 318,376.94/x
  3. Step 3: Cross multiply
    533,218.10x = 735,849.71 × 318,376.94
  4. Step 4: Simplify right side
    533,218.10x = 234,277,573,698.55
  5. Step 5: Solve for x
    x = 234,277,573,698.55/533,218.10
  6. Step 6: Final answer
    x = 439,365.39

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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.