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Finding the Fourth Proportional to 617,563.47, 852,237.47 and 345,631.35

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Solution

The fourth proportional to 617,563.47, 852,237.47 and 345,631.35 is: 476,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,563.47 : 852,237.47 = 345,631.35 : x
  2. Step 2: Convert to fraction form
    617,563.47/852,237.47 = 345,631.35/x
  3. Step 3: Cross multiply
    617,563.47x = 852,237.47 × 345,631.35
  4. Step 4: Simplify right side
    617,563.47x = 294,559,990,121.55
  5. Step 5: Solve for x
    x = 294,559,990,121.55/617,563.47
  6. Step 6: Final answer
    x = 476,971.20

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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.