Finding the Fourth Proportional to 877,616.04, 1,211,239.44 and 515,239.80
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Solution
The fourth proportional to 877,616.04, 1,211,239.44 and 515,239.80 is: 711,106.84
Step by Step Solution
- Step 1: Write the proportion equation
877,616.04 : 1,211,239.44 = 515,239.80 : x - Step 2: Convert to fraction form
877,616.04/1,211,239.44 = 515,239.80/x - Step 3: Cross multiply
877,616.04x = 1,211,239.44 × 515,239.80 - Step 4: Simplify right side
877,616.04x = 624,078,766,817.71 - Step 5: Solve for x
x = 624,078,766,817.71/877,616.04 - Step 6: Final answer
x = 711,106.84
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1.5x scale
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.