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Finding the Fourth Proportional to 545,605.40, 818,019.30 and 245,840.60

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Solution

The fourth proportional to 545,605.40, 818,019.30 and 245,840.60 is: 368,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,605.40 : 818,019.30 = 245,840.60 : x
  2. Step 2: Convert to fraction form
    545,605.40/818,019.30 = 245,840.60/x
  3. Step 3: Cross multiply
    545,605.40x = 818,019.30 × 245,840.60
  4. Step 4: Simplify right side
    545,605.40x = 201,102,355,523.58
  5. Step 5: Solve for x
    x = 201,102,355,523.58/545,605.40
  6. Step 6: Final answer
    x = 368,585.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.