Finding the Fourth Proportional to 426,869.13, 589,177.61 and 245,685.70
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Solution
The fourth proportional to 426,869.13, 589,177.61 and 245,685.70 is: 339,102.79
Step by Step Solution
- Step 1: Write the proportion equation
426,869.13 : 589,177.61 = 245,685.70 : x - Step 2: Convert to fraction form
426,869.13/589,177.61 = 245,685.70/x - Step 3: Cross multiply
426,869.13x = 589,177.61 × 245,685.70 - Step 4: Simplify right side
426,869.13x = 144,752,513,537.18 - Step 5: Solve for x
x = 144,752,513,537.18/426,869.13 - Step 6: Final answer
x = 339,102.79
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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.