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Finding the Fourth Proportional to 447,465.06, 617,730.30 and 345,260.88

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Solution

The fourth proportional to 447,465.06, 617,730.30 and 345,260.88 is: 476,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,465.06 : 617,730.30 = 345,260.88 : x
  2. Step 2: Convert to fraction form
    447,465.06/617,730.30 = 345,260.88/x
  3. Step 3: Cross multiply
    447,465.06x = 617,730.30 × 345,260.88
  4. Step 4: Simplify right side
    447,465.06x = 213,278,106,980.66
  5. Step 5: Solve for x
    x = 213,278,106,980.66/447,465.06
  6. Step 6: Final answer
    x = 476,636.34

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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.