Finding the Fourth Proportional to 646,117.74, 891,693.99 and 374,190.41
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Solution
The fourth proportional to 646,117.74, 891,693.99 and 374,190.41 is: 516,412.60
Step by Step Solution
- Step 1: Write the proportion equation
646,117.74 : 891,693.99 = 374,190.41 : x - Step 2: Convert to fraction form
646,117.74/891,693.99 = 374,190.41/x - Step 3: Cross multiply
646,117.74x = 891,693.99 × 374,190.41 - Step 4: Simplify right side
646,117.74x = 333,663,339,712.64 - Step 5: Solve for x
x = 333,663,339,712.64/646,117.74 - Step 6: Final answer
x = 516,412.60
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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.