Finding the Fourth Proportional to 825,340.06, 1,139,207.34 and 534,941.74
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Solution
The fourth proportional to 825,340.06, 1,139,207.34 and 534,941.74 is: 738,373.90
Step by Step Solution
- Step 1: Write the proportion equation
825,340.06 : 1,139,207.34 = 534,941.74 : x - Step 2: Convert to fraction form
825,340.06/1,139,207.34 = 534,941.74/x - Step 3: Cross multiply
825,340.06x = 1,139,207.34 × 534,941.74 - Step 4: Simplify right side
825,340.06x = 609,409,556,680.37 - Step 5: Solve for x
x = 609,409,556,680.37/825,340.06 - Step 6: Final answer
x = 738,373.90
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1.5x scale
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.