Finding the Fourth Proportional to 874,478.81, 1,312,465.90 and 342,373.51
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Solution
The fourth proportional to 874,478.81, 1,312,465.90 and 342,373.51 is: 513,852.99
Step by Step Solution
- Step 1: Write the proportion equation
874,478.81 : 1,312,465.90 = 342,373.51 : x - Step 2: Convert to fraction form
874,478.81/1,312,465.90 = 342,373.51/x - Step 3: Cross multiply
874,478.81x = 1,312,465.90 × 342,373.51 - Step 4: Simplify right side
874,478.81x = 449,353,552,801.21 - Step 5: Solve for x
x = 449,353,552,801.21/874,478.81 - Step 6: Final answer
x = 513,852.99
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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.