Finding the Fourth Proportional to 722,514.18, 996,124.28 and 621,623.36
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Solution
The fourth proportional to 722,514.18, 996,124.28 and 621,623.36 is: 857,026.95
Step by Step Solution
- Step 1: Write the proportion equation
722,514.18 : 996,124.28 = 621,623.36 : x - Step 2: Convert to fraction form
722,514.18/996,124.28 = 621,623.36/x - Step 3: Cross multiply
722,514.18x = 996,124.28 × 621,623.36 - Step 4: Simplify right side
722,514.18x = 619,214,121,911.18 - Step 5: Solve for x
x = 619,214,121,911.18/722,514.18 - Step 6: Final answer
x = 857,026.95
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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.