Finding the Fourth Proportional to 512,691.96, 707,461.74 and 297,877.08
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Solution
The fourth proportional to 512,691.96, 707,461.74 and 297,877.08 is: 411,039.48
Step by Step Solution
- Step 1: Write the proportion equation
512,691.96 : 707,461.74 = 297,877.08 : x - Step 2: Convert to fraction form
512,691.96/707,461.74 = 297,877.08/x - Step 3: Cross multiply
512,691.96x = 707,461.74 × 297,877.08 - Step 4: Simplify right side
512,691.96x = 210,736,637,322.92 - Step 5: Solve for x
x = 210,736,637,322.92/512,691.96 - Step 6: Final answer
x = 411,039.48
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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.