Finding the Fourth Proportional to 722,444.76, 996,929.82 and 400,135.68
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Solution
The fourth proportional to 722,444.76, 996,929.82 and 400,135.68 is: 552,162.90
Step by Step Solution
- Step 1: Write the proportion equation
722,444.76 : 996,929.82 = 400,135.68 : x - Step 2: Convert to fraction form
722,444.76/996,929.82 = 400,135.68/x - Step 3: Cross multiply
722,444.76x = 996,929.82 × 400,135.68 - Step 4: Simplify right side
722,444.76x = 398,907,191,437.98 - Step 5: Solve for x
x = 398,907,191,437.98/722,444.76 - Step 6: Final answer
x = 552,162.90
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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.