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Finding the Fourth Proportional to 617,442.12, 852,041.16 and 345,544.56

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Solution

The fourth proportional to 617,442.12, 852,041.16 and 345,544.56 is: 476,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,442.12 : 852,041.16 = 345,544.56 : x
  2. Step 2: Convert to fraction form
    617,442.12/852,041.16 = 345,544.56/x
  3. Step 3: Cross multiply
    617,442.12x = 852,041.16 × 345,544.56
  4. Step 4: Simplify right side
    617,442.12x = 294,418,187,734.09
  5. Step 5: Solve for x
    x = 294,418,187,734.09/617,442.12
  6. Step 6: Final answer
    x = 476,835.28

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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.