Finding the Fourth Proportional to 1,393,008.23, 1,921,536.91 and 875,943.79
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Solution
The fourth proportional to 1,393,008.23, 1,921,536.91 and 875,943.79 is: 1,208,290.29
Step by Step Solution
- Step 1: Write the proportion equation
1,393,008.23 : 1,921,536.91 = 875,943.79 : x - Step 2: Convert to fraction form
1,393,008.23/1,921,536.91 = 875,943.79/x - Step 3: Cross multiply
1,393,008.23x = 1,921,536.91 × 875,943.79 - Step 4: Simplify right side
1,393,008.23x = 1,683,158,319,861.38 - Step 5: Solve for x
x = 1,683,158,319,861.38/1,393,008.23 - Step 6: Final answer
x = 1,208,290.29
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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.