Finding the Fourth Proportional to 665,009.11, 997,653.95 and 215,695.09
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Solution
The fourth proportional to 665,009.11, 997,653.95 and 215,695.09 is: 323,588.14
Step by Step Solution
- Step 1: Write the proportion equation
665,009.11 : 997,653.95 = 215,695.09 : x - Step 2: Convert to fraction form
665,009.11/997,653.95 = 215,695.09/x - Step 3: Cross multiply
665,009.11x = 997,653.95 × 215,695.09 - Step 4: Simplify right side
665,009.11x = 215,189,058,534.11 - Step 5: Solve for x
x = 215,189,058,534.11/665,009.11 - Step 6: Final answer
x = 323,588.14
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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.