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Finding the Fourth Proportional to 660,622.08, 990,132.48 and 304,896

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Solution

The fourth proportional to 660,622.08, 990,132.48 and 304,896 is: 456,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,622.08 : 990,132.48 = 304,896 : x
  2. Step 2: Convert to fraction form
    660,622.08/990,132.48 = 304,896/x
  3. Step 3: Cross multiply
    660,622.08x = 990,132.48 × 304,896
  4. Step 4: Simplify right side
    660,622.08x = 301,887,432,622.08
  5. Step 5: Solve for x
    x = 301,887,432,622.08/660,622.08
  6. Step 6: Final answer
    x = 456,974.48

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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.