Finding the Fourth Proportional to 898,407.20, 1,239,748.80 and 490,427.84
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Solution
The fourth proportional to 898,407.20, 1,239,748.80 and 490,427.84 is: 676,761.41
Step by Step Solution
- Step 1: Write the proportion equation
898,407.20 : 1,239,748.80 = 490,427.84 : x - Step 2: Convert to fraction form
898,407.20/1,239,748.80 = 490,427.84/x - Step 3: Cross multiply
898,407.20x = 1,239,748.80 × 490,427.84 - Step 4: Simplify right side
898,407.20x = 608,007,326,126.59 - Step 5: Solve for x
x = 608,007,326,126.59/898,407.20 - Step 6: Final answer
x = 676,761.41
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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.