Finding the Fourth Proportional to 485,813.71, 670,423.81 and 270,967.62
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Solution
The fourth proportional to 485,813.71, 670,423.81 and 270,967.62 is: 373,935.82
Step by Step Solution
- Step 1: Write the proportion equation
485,813.71 : 670,423.81 = 270,967.62 : x - Step 2: Convert to fraction form
485,813.71/670,423.81 = 270,967.62/x - Step 3: Cross multiply
485,813.71x = 670,423.81 × 270,967.62 - Step 4: Simplify right side
485,813.71x = 181,663,144,187.03 - Step 5: Solve for x
x = 181,663,144,187.03/485,813.71 - Step 6: Final answer
x = 373,935.82
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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.