Finding the Fourth Proportional to 918,948.52, 1,268,149.68 and 511,041.46
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Solution
The fourth proportional to 918,948.52, 1,268,149.68 and 511,041.46 is: 705,237.62
Step by Step Solution
- Step 1: Write the proportion equation
918,948.52 : 1,268,149.68 = 511,041.46 : x - Step 2: Convert to fraction form
918,948.52/1,268,149.68 = 511,041.46/x - Step 3: Cross multiply
918,948.52x = 1,268,149.68 × 511,041.46 - Step 4: Simplify right side
918,948.52x = 648,077,063,965.73 - Step 5: Solve for x
x = 648,077,063,965.73/918,948.52 - Step 6: Final answer
x = 705,237.62
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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.