Finding the Fourth Proportional to 762,789.06, 1,143,740.49 and 289,216.08
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Solution
The fourth proportional to 762,789.06, 1,143,740.49 and 289,216.08 is: 433,656.12
Step by Step Solution
- Step 1: Write the proportion equation
762,789.06 : 1,143,740.49 = 289,216.08 : x - Step 2: Convert to fraction form
762,789.06/1,143,740.49 = 289,216.08/x - Step 3: Cross multiply
762,789.06x = 1,143,740.49 × 289,216.08 - Step 4: Simplify right side
762,789.06x = 330,788,141,055.08 - Step 5: Solve for x
x = 330,788,141,055.08/762,789.06 - Step 6: Final answer
x = 433,656.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.