Finding the Fourth Proportional to 752,172.30, 1,127,197.55 and 415,364.58
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Solution
The fourth proportional to 752,172.30, 1,127,197.55 and 415,364.58 is: 622,461.02
Step by Step Solution
- Step 1: Write the proportion equation
752,172.30 : 1,127,197.55 = 415,364.58 : x - Step 2: Convert to fraction form
752,172.30/1,127,197.55 = 415,364.58/x - Step 3: Cross multiply
752,172.30x = 1,127,197.55 × 415,364.58 - Step 4: Simplify right side
752,172.30x = 468,197,937,971.19 - Step 5: Solve for x
x = 468,197,937,971.19/752,172.30 - Step 6: Final answer
x = 622,461.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.