Finding the Fourth Proportional to 408,829.59, 613,270.37 and 128,357.91
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Solution
The fourth proportional to 408,829.59, 613,270.37 and 128,357.91 is: 192,545.02
Step by Step Solution
- Step 1: Write the proportion equation
408,829.59 : 613,270.37 = 128,357.91 : x - Step 2: Convert to fraction form
408,829.59/613,270.37 = 128,357.91/x - Step 3: Cross multiply
408,829.59x = 613,270.37 × 128,357.91 - Step 4: Simplify right side
408,829.59x = 78,718,103,279.02 - Step 5: Solve for x
x = 78,718,103,279.02/408,829.59 - Step 6: Final answer
x = 192,545.02
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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.