Finding the Fourth Proportional to 612,813.76, 919,368.28 and 192,089.62
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Solution
The fourth proportional to 612,813.76, 919,368.28 and 192,089.62 is: 288,180.71
Step by Step Solution
- Step 1: Write the proportion equation
612,813.76 : 919,368.28 = 192,089.62 : x - Step 2: Convert to fraction form
612,813.76/919,368.28 = 192,089.62/x - Step 3: Cross multiply
612,813.76x = 919,368.28 × 192,089.62 - Step 4: Simplify right side
612,813.76x = 176,601,103,545.25 - Step 5: Solve for x
x = 176,601,103,545.25/612,813.76 - Step 6: Final answer
x = 288,180.71
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1.5x scale
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.