Finding the Fourth Proportional to 689,806.50, 951,913.47 and 383,877.99
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Solution
The fourth proportional to 689,806.50, 951,913.47 and 383,877.99 is: 529,740.77
Step by Step Solution
- Step 1: Write the proportion equation
689,806.50 : 951,913.47 = 383,877.99 : x - Step 2: Convert to fraction form
689,806.50/951,913.47 = 383,877.99/x - Step 3: Cross multiply
689,806.50x = 951,913.47 × 383,877.99 - Step 4: Simplify right side
689,806.50x = 365,418,629,517.53 - Step 5: Solve for x
x = 365,418,629,517.53/689,806.50 - Step 6: Final answer
x = 529,740.77
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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.