Finding the Fourth Proportional to 769,051.63, 1,153,823.88 and 538,480.79
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Solution
The fourth proportional to 769,051.63, 1,153,823.88 and 538,480.79 is: 807,893.74
Step by Step Solution
- Step 1: Write the proportion equation
769,051.63 : 1,153,823.88 = 538,480.79 : x - Step 2: Convert to fraction form
769,051.63/1,153,823.88 = 538,480.79/x - Step 3: Cross multiply
769,051.63x = 1,153,823.88 × 538,480.79 - Step 4: Simplify right side
769,051.63x = 621,312,000,193.63 - Step 5: Solve for x
x = 621,312,000,193.63/769,051.63 - Step 6: Final answer
x = 807,893.74
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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.