Finding the Fourth Proportional to 750,581.12, 1,035,803.52 and 406,420.80
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Solution
The fourth proportional to 750,581.12, 1,035,803.52 and 406,420.80 is: 560,861.56
Step by Step Solution
- Step 1: Write the proportion equation
750,581.12 : 1,035,803.52 = 406,420.80 : x - Step 2: Convert to fraction form
750,581.12/1,035,803.52 = 406,420.80/x - Step 3: Cross multiply
750,581.12x = 1,035,803.52 × 406,420.80 - Step 4: Simplify right side
750,581.12x = 420,972,095,241.22 - Step 5: Solve for x
x = 420,972,095,241.22/750,581.12 - Step 6: Final answer
x = 560,861.56
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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.