Finding the Fourth Proportional to 874,478.87, 1,312,465.99 and 342,373.57
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Solution
The fourth proportional to 874,478.87, 1,312,465.99 and 342,373.57 is: 513,853.09
Step by Step Solution
- Step 1: Write the proportion equation
874,478.87 : 1,312,465.99 = 342,373.57 : x - Step 2: Convert to fraction form
874,478.87/1,312,465.99 = 342,373.57/x - Step 3: Cross multiply
874,478.87x = 1,312,465.99 × 342,373.57 - Step 4: Simplify right side
874,478.87x = 449,353,666,499.88 - Step 5: Solve for x
x = 449,353,666,499.88/874,478.87 - Step 6: Final answer
x = 513,853.09
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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.