Finding the Fourth Proportional to 943,089.08, 1,298,983.84 and 724,880.54
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Solution
The fourth proportional to 943,089.08, 1,298,983.84 and 724,880.54 is: 998,429.66
Step by Step Solution
- Step 1: Write the proportion equation
943,089.08 : 1,298,983.84 = 724,880.54 : x - Step 2: Convert to fraction form
943,089.08/1,298,983.84 = 724,880.54/x - Step 3: Cross multiply
943,089.08x = 1,298,983.84 × 724,880.54 - Step 4: Simplify right side
943,089.08x = 941,608,108,825.73 - Step 5: Solve for x
x = 941,608,108,825.73/943,089.08 - Step 6: Final answer
x = 998,429.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.