Finding the Fourth Proportional to 920,587.41, 1,270,384.90 and 512,689.14
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Solution
The fourth proportional to 920,587.41, 1,270,384.90 and 512,689.14 is: 707,496.69
Step by Step Solution
- Step 1: Write the proportion equation
920,587.41 : 1,270,384.90 = 512,689.14 : x - Step 2: Convert to fraction form
920,587.41/1,270,384.90 = 512,689.14/x - Step 3: Cross multiply
920,587.41x = 1,270,384.90 × 512,689.14 - Step 4: Simplify right side
920,587.41x = 651,312,541,849.99 - Step 5: Solve for x
x = 651,312,541,849.99/920,587.41 - Step 6: Final answer
x = 707,496.69
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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.