Finding the Fourth Proportional to 606,965.80, 910,448.70 and 212,981.80
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Solution
The fourth proportional to 606,965.80, 910,448.70 and 212,981.80 is: 319,472.70
Step by Step Solution
- Step 1: Write the proportion equation
606,965.80 : 910,448.70 = 212,981.80 : x - Step 2: Convert to fraction form
606,965.80/910,448.70 = 212,981.80/x - Step 3: Cross multiply
606,965.80x = 910,448.70 × 212,981.80 - Step 4: Simplify right side
606,965.80x = 193,909,002,933.66 - Step 5: Solve for x
x = 193,909,002,933.66/606,965.80 - Step 6: Final answer
x = 319,472.70
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1.5x scale
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.