Finding the Fourth Proportional to 752,536.15, 1,128,976.59 and 326,143.50
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Solution
The fourth proportional to 752,536.15, 1,128,976.59 and 326,143.50 is: 489,289.95
Step by Step Solution
- Step 1: Write the proportion equation
752,536.15 : 1,128,976.59 = 326,143.50 : x - Step 2: Convert to fraction form
752,536.15/1,128,976.59 = 326,143.50/x - Step 3: Cross multiply
752,536.15x = 1,128,976.59 × 326,143.50 - Step 4: Simplify right side
752,536.15x = 368,208,372,247.00 - Step 5: Solve for x
x = 368,208,372,247.00/752,536.15 - Step 6: Final answer
x = 489,289.95
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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.