Finding the Fourth Proportional to 513,478.08, 708,545.20 and 283,998.88
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Solution
The fourth proportional to 513,478.08, 708,545.20 and 283,998.88 is: 391,888.28
Step by Step Solution
- Step 1: Write the proportion equation
513,478.08 : 708,545.20 = 283,998.88 : x - Step 2: Convert to fraction form
513,478.08/708,545.20 = 283,998.88/x - Step 3: Cross multiply
513,478.08x = 708,545.20 × 283,998.88 - Step 4: Simplify right side
513,478.08x = 201,226,043,229.38 - Step 5: Solve for x
x = 201,226,043,229.38/513,478.08 - Step 6: Final answer
x = 391,888.28
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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.