Finding the Fourth Proportional to 680,661.41, 939,277.08 and 374,678.06
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Solution
The fourth proportional to 680,661.41, 939,277.08 and 374,678.06 is: 517,036.09
Step by Step Solution
- Step 1: Write the proportion equation
680,661.41 : 939,277.08 = 374,678.06 : x - Step 2: Convert to fraction form
680,661.41/939,277.08 = 374,678.06/x - Step 3: Cross multiply
680,661.41x = 939,277.08 × 374,678.06 - Step 4: Simplify right side
680,661.41x = 351,926,509,440.48 - Step 5: Solve for x
x = 351,926,509,440.48/680,661.41 - Step 6: Final answer
x = 517,036.09
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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.