Finding the Fourth Proportional to 750,903.21, 1,036,247.49 and 406,742.88
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Solution
The fourth proportional to 750,903.21, 1,036,247.49 and 406,742.88 is: 561,305.75
Step by Step Solution
- Step 1: Write the proportion equation
750,903.21 : 1,036,247.49 = 406,742.88 : x - Step 2: Convert to fraction form
750,903.21/1,036,247.49 = 406,742.88/x - Step 3: Cross multiply
750,903.21x = 1,036,247.49 × 406,742.88 - Step 4: Simplify right side
750,903.21x = 421,486,288,475.37 - Step 5: Solve for x
x = 421,486,288,475.37/750,903.21 - Step 6: Final answer
x = 561,305.75
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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.