Finding the Fourth Proportional to 476,897.60, 658,116.81 and 272,947.70
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Solution
The fourth proportional to 476,897.60, 658,116.81 and 272,947.70 is: 376,666.75
Step by Step Solution
- Step 1: Write the proportion equation
476,897.60 : 658,116.81 = 272,947.70 : x - Step 2: Convert to fraction form
476,897.60/658,116.81 = 272,947.70/x - Step 3: Cross multiply
476,897.60x = 658,116.81 × 272,947.70 - Step 4: Simplify right side
476,897.60x = 179,631,466,330.25 - Step 5: Solve for x
x = 179,631,466,330.25/476,897.60 - Step 6: Final answer
x = 376,666.75
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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.