Finding the Fourth Proportional to 643,686.24, 965,536.44 and 194,410.92
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Solution
The fourth proportional to 643,686.24, 965,536.44 and 194,410.92 is: 291,618.52
Step by Step Solution
- Step 1: Write the proportion equation
643,686.24 : 965,536.44 = 194,410.92 : x - Step 2: Convert to fraction form
643,686.24/965,536.44 = 194,410.92/x - Step 3: Cross multiply
643,686.24x = 965,536.44 × 194,410.92 - Step 4: Simplify right side
643,686.24x = 187,710,827,593.93 - Step 5: Solve for x
x = 187,710,827,593.93/643,686.24 - Step 6: Final answer
x = 291,618.52
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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.