Finding the Fourth Proportional to 1,686,035.40, 2,326,762.80 and 922,138.08
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Solution
The fourth proportional to 1,686,035.40, 2,326,762.80 and 922,138.08 is: 1,272,569.12
Step by Step Solution
- Step 1: Write the proportion equation
1,686,035.40 : 2,326,762.80 = 922,138.08 : x - Step 2: Convert to fraction form
1,686,035.40/2,326,762.80 = 922,138.08/x - Step 3: Cross multiply
1,686,035.40x = 2,326,762.80 × 922,138.08 - Step 4: Simplify right side
1,686,035.40x = 2,145,596,581,007.42 - Step 5: Solve for x
x = 2,145,596,581,007.42/1,686,035.40 - Step 6: Final answer
x = 1,272,569.12
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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.