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Finding the Fourth Proportional to 578,662.25, 798,566.72 and 330,299.15

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Solution

The fourth proportional to 578,662.25, 798,566.72 and 330,299.15 is: 455,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,662.25 : 798,566.72 = 330,299.15 : x
  2. Step 2: Convert to fraction form
    578,662.25/798,566.72 = 330,299.15/x
  3. Step 3: Cross multiply
    578,662.25x = 798,566.72 × 330,299.15
  4. Step 4: Simplify right side
    578,662.25x = 263,765,903,189.96
  5. Step 5: Solve for x
    x = 263,765,903,189.96/578,662.25
  6. Step 6: Final answer
    x = 455,820.14

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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.