Finding the Fourth Proportional to 985,536.16, 1,358,807.62 and 822,427.66
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Solution
The fourth proportional to 985,536.16, 1,358,807.62 and 822,427.66 is: 1,133,921.84
Step by Step Solution
- Step 1: Write the proportion equation
985,536.16 : 1,358,807.62 = 822,427.66 : x - Step 2: Convert to fraction form
985,536.16/1,358,807.62 = 822,427.66/x - Step 3: Cross multiply
985,536.16x = 1,358,807.62 × 822,427.66 - Step 4: Simplify right side
985,536.16x = 1,117,520,971,306.77 - Step 5: Solve for x
x = 1,117,520,971,306.77/985,536.16 - Step 6: Final answer
x = 1,133,921.84
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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.