Finding the Fourth Proportional to 803,863.70, 1,203,721.95 and 637,975.70
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Solution
The fourth proportional to 803,863.70, 1,203,721.95 and 637,975.70 is: 955,317.87
Step by Step Solution
- Step 1: Write the proportion equation
803,863.70 : 1,203,721.95 = 637,975.70 : x - Step 2: Convert to fraction form
803,863.70/1,203,721.95 = 637,975.70/x - Step 3: Cross multiply
803,863.70x = 1,203,721.95 × 637,975.70 - Step 4: Simplify right side
803,863.70x = 767,945,353,656.62 - Step 5: Solve for x
x = 767,945,353,656.62/803,863.70 - Step 6: Final answer
x = 955,317.87
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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.