Finding the Fourth Proportional to 788,655.33, 1,088,344.86 and 426,078.99
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Solution
The fourth proportional to 788,655.33, 1,088,344.86 and 426,078.99 is: 587,989.28
Step by Step Solution
- Step 1: Write the proportion equation
788,655.33 : 1,088,344.86 = 426,078.99 : x - Step 2: Convert to fraction form
788,655.33/1,088,344.86 = 426,078.99/x - Step 3: Cross multiply
788,655.33x = 1,088,344.86 × 426,078.99 - Step 4: Simplify right side
788,655.33x = 463,720,878,720.49 - Step 5: Solve for x
x = 463,720,878,720.49/788,655.33 - Step 6: Final answer
x = 587,989.28
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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.