Finding the Fourth Proportional to 821,154.93, 1,133,289.41 and 683,089.96
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Solution
The fourth proportional to 821,154.93, 1,133,289.41 and 683,089.96 is: 942,743.68
Step by Step Solution
- Step 1: Write the proportion equation
821,154.93 : 1,133,289.41 = 683,089.96 : x - Step 2: Convert to fraction form
821,154.93/1,133,289.41 = 683,089.96/x - Step 3: Cross multiply
821,154.93x = 1,133,289.41 × 683,089.96 - Step 4: Simplify right side
821,154.93x = 774,138,613,621.57 - Step 5: Solve for x
x = 774,138,613,621.57/821,154.93 - Step 6: Final answer
x = 942,743.68
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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.