Finding the Fourth Proportional to 652,804.80, 979,207.20 and 540,611.70
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Solution
The fourth proportional to 652,804.80, 979,207.20 and 540,611.70 is: 810,917.55
Step by Step Solution
- Step 1: Write the proportion equation
652,804.80 : 979,207.20 = 540,611.70 : x - Step 2: Convert to fraction form
652,804.80/979,207.20 = 540,611.70/x - Step 3: Cross multiply
652,804.80x = 979,207.20 × 540,611.70 - Step 4: Simplify right side
652,804.80x = 529,370,869,044.24 - Step 5: Solve for x
x = 529,370,869,044.24/652,804.80 - Step 6: Final answer
x = 810,917.55
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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.