Finding the Fourth Proportional to 774,263.40, 1,161,556.74 and 390,228.09
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Solution
The fourth proportional to 774,263.40, 1,161,556.74 and 390,228.09 is: 585,423.60
Step by Step Solution
- Step 1: Write the proportion equation
774,263.40 : 1,161,556.74 = 390,228.09 : x - Step 2: Convert to fraction form
774,263.40/1,161,556.74 = 390,228.09/x - Step 3: Cross multiply
774,263.40x = 1,161,556.74 × 390,228.09 - Step 4: Simplify right side
774,263.40x = 453,272,068,076.83 - Step 5: Solve for x
x = 453,272,068,076.83/774,263.40 - Step 6: Final answer
x = 585,423.60
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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.