Finding the Fourth Proportional to 581,869.78, 872,795.93 and 261,795.65
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Solution
The fourth proportional to 581,869.78, 872,795.93 and 261,795.65 is: 392,689.53
Step by Step Solution
- Step 1: Write the proportion equation
581,869.78 : 872,795.93 = 261,795.65 : x - Step 2: Convert to fraction form
581,869.78/872,795.93 = 261,795.65/x - Step 3: Cross multiply
581,869.78x = 872,795.93 × 261,795.65 - Step 4: Simplify right side
581,869.78x = 228,494,172,138.75 - Step 5: Solve for x
x = 228,494,172,138.75/581,869.78 - Step 6: Final answer
x = 392,689.53
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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.