Finding the Fourth Proportional to 778,926.96, 1,074,969.36 and 439,387.92
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Solution
The fourth proportional to 778,926.96, 1,074,969.36 and 439,387.92 is: 606,383.62
Step by Step Solution
- Step 1: Write the proportion equation
778,926.96 : 1,074,969.36 = 439,387.92 : x - Step 2: Convert to fraction form
778,926.96/1,074,969.36 = 439,387.92/x - Step 3: Cross multiply
778,926.96x = 1,074,969.36 × 439,387.92 - Step 4: Simplify right side
778,926.96x = 472,328,551,154.13 - Step 5: Solve for x
x = 472,328,551,154.13/778,926.96 - Step 6: Final answer
x = 606,383.62
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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.