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Finding the Fourth Proportional to 441,690.84, 609,378.08 and 288,818.48

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Solution

The fourth proportional to 441,690.84, 609,378.08 and 288,818.48 is: 398,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,690.84 : 609,378.08 = 288,818.48 : x
  2. Step 2: Convert to fraction form
    441,690.84/609,378.08 = 288,818.48/x
  3. Step 3: Cross multiply
    441,690.84x = 609,378.08 × 288,818.48
  4. Step 4: Simplify right side
    441,690.84x = 175,999,650,890.27
  5. Step 5: Solve for x
    x = 175,999,650,890.27/441,690.84
  6. Step 6: Final answer
    x = 398,467.97

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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.