Finding the Fourth Proportional to 389,944.20, 584,916.30 and 355,537.80
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Solution
The fourth proportional to 389,944.20, 584,916.30 and 355,537.80 is: 533,306.70
Step by Step Solution
- Step 1: Write the proportion equation
389,944.20 : 584,916.30 = 355,537.80 : x - Step 2: Convert to fraction form
389,944.20/584,916.30 = 355,537.80/x - Step 3: Cross multiply
389,944.20x = 584,916.30 × 355,537.80 - Step 4: Simplify right side
389,944.20x = 207,959,854,486.14 - Step 5: Solve for x
x = 207,959,854,486.14/389,944.20 - Step 6: Final answer
x = 533,306.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.