Finding the Fourth Proportional to 512,655.99, 707,461.90 and 283,228.08
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Solution
The fourth proportional to 512,655.99, 707,461.90 and 283,228.08 is: 390,852.89
Step by Step Solution
- Step 1: Write the proportion equation
512,655.99 : 707,461.90 = 283,228.08 : x - Step 2: Convert to fraction form
512,655.99/707,461.90 = 283,228.08/x - Step 3: Cross multiply
512,655.99x = 707,461.90 × 283,228.08 - Step 4: Simplify right side
512,655.99x = 200,373,072,249.10 - Step 5: Solve for x
x = 200,373,072,249.10/512,655.99 - Step 6: Final answer
x = 390,852.89
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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.