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Finding the Fourth Proportional to 388,883.72, 583,534.70 and 374,729.12

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Solution

The fourth proportional to 388,883.72, 583,534.70 and 374,729.12 is: 562,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,883.72 : 583,534.70 = 374,729.12 : x
  2. Step 2: Convert to fraction form
    388,883.72/583,534.70 = 374,729.12/x
  3. Step 3: Cross multiply
    388,883.72x = 583,534.70 × 374,729.12
  4. Step 4: Simplify right side
    388,883.72x = 218,667,444,620.46
  5. Step 5: Solve for x
    x = 218,667,444,620.46/388,883.72
  6. Step 6: Final answer
    x = 562,295.19

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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.