Finding the Fourth Proportional to 810,556.74, 1,118,707.20 and 471,221.82
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Solution
The fourth proportional to 810,556.74, 1,118,707.20 and 471,221.82 is: 650,366.86
Step by Step Solution
- Step 1: Write the proportion equation
810,556.74 : 1,118,707.20 = 471,221.82 : x - Step 2: Convert to fraction form
810,556.74/1,118,707.20 = 471,221.82/x - Step 3: Cross multiply
810,556.74x = 1,118,707.20 × 471,221.82 - Step 4: Simplify right side
810,556.74x = 527,159,242,831.10 - Step 5: Solve for x
x = 527,159,242,831.10/810,556.74 - Step 6: Final answer
x = 650,366.86
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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.