Finding the Fourth Proportional to 644,813.80, 967,220.70 and 349,901.80
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Solution
The fourth proportional to 644,813.80, 967,220.70 and 349,901.80 is: 524,852.70
Step by Step Solution
- Step 1: Write the proportion equation
644,813.80 : 967,220.70 = 349,901.80 : x - Step 2: Convert to fraction form
644,813.80/967,220.70 = 349,901.80/x - Step 3: Cross multiply
644,813.80x = 967,220.70 × 349,901.80 - Step 4: Simplify right side
644,813.80x = 338,432,263,927.26 - Step 5: Solve for x
x = 338,432,263,927.26/644,813.80 - Step 6: Final answer
x = 524,852.70
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Similar ratio
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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.