Finding the Fourth Proportional to 1,178,435.61, 1,626,195.36 and 720,317.23
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Solution
The fourth proportional to 1,178,435.61, 1,626,195.36 and 720,317.23 is: 994,009.79
Step by Step Solution
- Step 1: Write the proportion equation
1,178,435.61 : 1,626,195.36 = 720,317.23 : x - Step 2: Convert to fraction form
1,178,435.61/1,626,195.36 = 720,317.23/x - Step 3: Cross multiply
1,178,435.61x = 1,626,195.36 × 720,317.23 - Step 4: Simplify right side
1,178,435.61x = 1,171,376,537,154.05 - Step 5: Solve for x
x = 1,171,376,537,154.05/1,178,435.61 - Step 6: Final answer
x = 994,009.79
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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.