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Finding the Fourth Proportional to 389,341, 536,803.77 and 324,903.07

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Solution

The fourth proportional to 389,341, 536,803.77 and 324,903.07 is: 447,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,341 : 536,803.77 = 324,903.07 : x
  2. Step 2: Convert to fraction form
    389,341/536,803.77 = 324,903.07/x
  3. Step 3: Cross multiply
    389,341x = 536,803.77 × 324,903.07
  4. Step 4: Simplify right side
    389,341x = 174,409,192,860.57
  5. Step 5: Solve for x
    x = 174,409,192,860.57/389,341
  6. Step 6: Final answer
    x = 447,960.00

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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.