Finding the Fourth Proportional to 999,117.62, 1,378,779.37 and 540,228.92
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Solution
The fourth proportional to 999,117.62, 1,378,779.37 and 540,228.92 is: 745,514.32
Step by Step Solution
- Step 1: Write the proportion equation
999,117.62 : 1,378,779.37 = 540,228.92 : x - Step 2: Convert to fraction form
999,117.62/1,378,779.37 = 540,228.92/x - Step 3: Cross multiply
999,117.62x = 1,378,779.37 × 540,228.92 - Step 4: Simplify right side
999,117.62x = 744,856,489,973.38 - Step 5: Solve for x
x = 744,856,489,973.38/999,117.62 - Step 6: Final answer
x = 745,514.32
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1.5x scale
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.