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Finding the Fourth Proportional to 660,081.96, 989,964.48 and 304,754.64

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Solution

The fourth proportional to 660,081.96, 989,964.48 and 304,754.64 is: 457,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,081.96 : 989,964.48 = 304,754.64 : x
  2. Step 2: Convert to fraction form
    660,081.96/989,964.48 = 304,754.64/x
  3. Step 3: Cross multiply
    660,081.96x = 989,964.48 × 304,754.64
  4. Step 4: Simplify right side
    660,081.96x = 301,696,268,715.19
  5. Step 5: Solve for x
    x = 301,696,268,715.19/660,081.96
  6. Step 6: Final answer
    x = 457,058.80

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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.