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Finding the Fourth Proportional to 646,087.36, 969,329.52 and 330,765.60

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Solution

The fourth proportional to 646,087.36, 969,329.52 and 330,765.60 is: 496,250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,087.36 : 969,329.52 = 330,765.60 : x
  2. Step 2: Convert to fraction form
    646,087.36/969,329.52 = 330,765.60/x
  3. Step 3: Cross multiply
    646,087.36x = 969,329.52 × 330,765.60
  4. Step 4: Simplify right side
    646,087.36x = 320,620,860,280.51
  5. Step 5: Solve for x
    x = 320,620,860,280.51/646,087.36
  6. Step 6: Final answer
    x = 496,250.01

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1.5x scale

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.