Finding the Fourth Proportional to 474,462.81, 711,694.68 and 193,980.06
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Solution
The fourth proportional to 474,462.81, 711,694.68 and 193,980.06 is: 290,970.28
Step by Step Solution
- Step 1: Write the proportion equation
474,462.81 : 711,694.68 = 193,980.06 : x - Step 2: Convert to fraction form
474,462.81/711,694.68 = 193,980.06/x - Step 3: Cross multiply
474,462.81x = 711,694.68 × 193,980.06 - Step 4: Simplify right side
474,462.81x = 138,054,576,728.08 - Step 5: Solve for x
x = 138,054,576,728.08/474,462.81 - Step 6: Final answer
x = 290,970.28
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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.