Finding the Fourth Proportional to 1,686,321.16, 2,327,160.12 and 922,374.70
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Solution
The fourth proportional to 1,686,321.16, 2,327,160.12 and 922,374.70 is: 1,272,897.28
Step by Step Solution
- Step 1: Write the proportion equation
1,686,321.16 : 2,327,160.12 = 922,374.70 : x - Step 2: Convert to fraction form
1,686,321.16/2,327,160.12 = 922,374.70/x - Step 3: Cross multiply
1,686,321.16x = 2,327,160.12 × 922,374.70 - Step 4: Simplify right side
1,686,321.16x = 2,146,513,617,536.96 - Step 5: Solve for x
x = 2,146,513,617,536.96/1,686,321.16 - Step 6: Final answer
x = 1,272,897.28
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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.