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Finding the Fourth Proportional to 660,159.78, 990,080.37 and 304,832.22

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Solution

The fourth proportional to 660,159.78, 990,080.37 and 304,832.22 is: 457,174.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,159.78 : 990,080.37 = 304,832.22 : x
  2. Step 2: Convert to fraction form
    660,159.78/990,080.37 = 304,832.22/x
  3. Step 3: Cross multiply
    660,159.78x = 990,080.37 × 304,832.22
  4. Step 4: Simplify right side
    660,159.78x = 301,808,397,165.52
  5. Step 5: Solve for x
    x = 301,808,397,165.52/660,159.78
  6. Step 6: Final answer
    x = 457,174.77

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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.