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Finding the Fourth Proportional to 660,085.46, 989,969.73 and 304,758.14

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Solution

The fourth proportional to 660,085.46, 989,969.73 and 304,758.14 is: 457,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,085.46 : 989,969.73 = 304,758.14 : x
  2. Step 2: Convert to fraction form
    660,085.46/989,969.73 = 304,758.14/x
  3. Step 3: Cross multiply
    660,085.46x = 989,969.73 × 304,758.14
  4. Step 4: Simplify right side
    660,085.46x = 301,701,333,571.10
  5. Step 5: Solve for x
    x = 301,701,333,571.10/660,085.46
  6. Step 6: Final answer
    x = 457,064.05

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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.