Finding the Fourth Proportional to 506,457.09, 699,125.99 and 315,564.80
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Solution
The fourth proportional to 506,457.09, 699,125.99 and 315,564.80 is: 435,613.51
Step by Step Solution
- Step 1: Write the proportion equation
506,457.09 : 699,125.99 = 315,564.80 : x - Step 2: Convert to fraction form
506,457.09/699,125.99 = 315,564.80/x - Step 3: Cross multiply
506,457.09x = 699,125.99 × 315,564.80 - Step 4: Simplify right side
506,457.09x = 220,619,548,135.70 - Step 5: Solve for x
x = 220,619,548,135.70/506,457.09 - Step 6: Final answer
x = 435,613.51
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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.