Finding the Fourth Proportional to 1,431,193.83, 1,973,014.71 and 1,138,237.08
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Solution
The fourth proportional to 1,431,193.83, 1,973,014.71 and 1,138,237.08 is: 1,569,150.49
Step by Step Solution
- Step 1: Write the proportion equation
1,431,193.83 : 1,973,014.71 = 1,138,237.08 : x - Step 2: Convert to fraction form
1,431,193.83/1,973,014.71 = 1,138,237.08/x - Step 3: Cross multiply
1,431,193.83x = 1,973,014.71 × 1,138,237.08 - Step 4: Simplify right side
1,431,193.83x = 2,245,758,502,307.45 - Step 5: Solve for x
x = 2,245,758,502,307.45/1,431,193.83 - Step 6: Final answer
x = 1,569,150.49
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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.