Finding the Fourth Proportional to 778,129.07, 1,167,302.81 and 272,574.29
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Solution
The fourth proportional to 778,129.07, 1,167,302.81 and 272,574.29 is: 408,899.69
Step by Step Solution
- Step 1: Write the proportion equation
778,129.07 : 1,167,302.81 = 272,574.29 : x - Step 2: Convert to fraction form
778,129.07/1,167,302.81 = 272,574.29/x - Step 3: Cross multiply
778,129.07x = 1,167,302.81 × 272,574.29 - Step 4: Simplify right side
778,129.07x = 318,176,736,206.14 - Step 5: Solve for x
x = 318,176,736,206.14/778,129.07 - Step 6: Final answer
x = 408,899.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.