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Finding the Fourth Proportional to 545,455.20, 817,599.60 and 245,884.80

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Solution

The fourth proportional to 545,455.20, 817,599.60 and 245,884.80 is: 368,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,455.20 : 817,599.60 = 245,884.80 : x
  2. Step 2: Convert to fraction form
    545,455.20/817,599.60 = 245,884.80/x
  3. Step 3: Cross multiply
    545,455.20x = 817,599.60 × 245,884.80
  4. Step 4: Simplify right side
    545,455.20x = 201,035,314,126.08
  5. Step 5: Solve for x
    x = 201,035,314,126.08/545,455.20
  6. Step 6: Final answer
    x = 368,564.30

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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.