Finding the Fourth Proportional to 645,911.70, 967,117.95 and 505,943.70
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Solution
The fourth proportional to 645,911.70, 967,117.95 and 505,943.70 is: 757,545.09
Step by Step Solution
- Step 1: Write the proportion equation
645,911.70 : 967,117.95 = 505,943.70 : x - Step 2: Convert to fraction form
645,911.70/967,117.95 = 505,943.70/x - Step 3: Cross multiply
645,911.70x = 967,117.95 × 505,943.70 - Step 4: Simplify right side
645,911.70x = 489,307,233,959.42 - Step 5: Solve for x
x = 489,307,233,959.42/645,911.70 - Step 6: Final answer
x = 757,545.09
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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.