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Finding the Fourth Proportional to 565,924.76, 780,960.84 and 320,954.48

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Solution

The fourth proportional to 565,924.76, 780,960.84 and 320,954.48 is: 442,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,924.76 : 780,960.84 = 320,954.48 : x
  2. Step 2: Convert to fraction form
    565,924.76/780,960.84 = 320,954.48/x
  3. Step 3: Cross multiply
    565,924.76x = 780,960.84 × 320,954.48
  4. Step 4: Simplify right side
    565,924.76x = 250,652,880,302.56
  5. Step 5: Solve for x
    x = 250,652,880,302.56/565,924.76
  6. Step 6: Final answer
    x = 442,908.49

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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.