Finding the Fourth Proportional to 380,552.40, 570,430.08 and 127,770.84
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Solution
The fourth proportional to 380,552.40, 570,430.08 and 127,770.84 is: 191,522.46
Step by Step Solution
- Step 1: Write the proportion equation
380,552.40 : 570,430.08 = 127,770.84 : x - Step 2: Convert to fraction form
380,552.40/570,430.08 = 127,770.84/x - Step 3: Cross multiply
380,552.40x = 570,430.08 × 127,770.84 - Step 4: Simplify right side
380,552.40x = 72,884,330,482.87 - Step 5: Solve for x
x = 72,884,330,482.87/380,552.40 - Step 6: Final answer
x = 191,522.46
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1.5x scale
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.