Finding the Fourth Proportional to 912,855.78, 1,370,070.99 and 352,283.94
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Solution
The fourth proportional to 912,855.78, 1,370,070.99 and 352,283.94 is: 528,729.75
Step by Step Solution
- Step 1: Write the proportion equation
912,855.78 : 1,370,070.99 = 352,283.94 : x - Step 2: Convert to fraction form
912,855.78/1,370,070.99 = 352,283.94/x - Step 3: Cross multiply
912,855.78x = 1,370,070.99 × 352,283.94 - Step 4: Simplify right side
912,855.78x = 482,654,006,436.90 - Step 5: Solve for x
x = 482,654,006,436.90/912,855.78 - Step 6: Final answer
x = 528,729.75
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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.