Finding the Fourth Proportional to 920,703.42, 1,270,566.78 and 512,810.10
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Solution
The fourth proportional to 920,703.42, 1,270,566.78 and 512,810.10 is: 707,675.74
Step by Step Solution
- Step 1: Write the proportion equation
920,703.42 : 1,270,566.78 = 512,810.10 : x - Step 2: Convert to fraction form
920,703.42/1,270,566.78 = 512,810.10/x - Step 3: Cross multiply
920,703.42x = 1,270,566.78 × 512,810.10 - Step 4: Simplify right side
920,703.42x = 651,559,477,508.48 - Step 5: Solve for x
x = 651,559,477,508.48/920,703.42 - Step 6: Final answer
x = 707,675.74
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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.