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Finding the Fourth Proportional to 478,505.37, 717,080.94 and 265,367.01

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Solution

The fourth proportional to 478,505.37, 717,080.94 and 265,367.01 is: 397,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,505.37 : 717,080.94 = 265,367.01 : x
  2. Step 2: Convert to fraction form
    478,505.37/717,080.94 = 265,367.01/x
  3. Step 3: Cross multiply
    478,505.37x = 717,080.94 × 265,367.01
  4. Step 4: Simplify right side
    478,505.37x = 190,289,624,975.79
  5. Step 5: Solve for x
    x = 190,289,624,975.79/478,505.37
  6. Step 6: Final answer
    x = 397,675.00

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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.