Finding the Fourth Proportional to 1,047,488.56, 1,445,702.68 and 979,107.75
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Solution
The fourth proportional to 1,047,488.56, 1,445,702.68 and 979,107.75 is: 1,351,326.17
Step by Step Solution
- Step 1: Write the proportion equation
1,047,488.56 : 1,445,702.68 = 979,107.75 : x - Step 2: Convert to fraction form
1,047,488.56/1,445,702.68 = 979,107.75/x - Step 3: Cross multiply
1,047,488.56x = 1,445,702.68 × 979,107.75 - Step 4: Simplify right side
1,047,488.56x = 1,415,498,699,407.65 - Step 5: Solve for x
x = 1,415,498,699,407.65/1,047,488.56 - Step 6: Final answer
x = 1,351,326.17
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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.