Finding the Fourth Proportional to 732,449.55, 1,010,756.84 and 405,749.10
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Solution
The fourth proportional to 732,449.55, 1,010,756.84 and 405,749.10 is: 559,920.72
Step by Step Solution
- Step 1: Write the proportion equation
732,449.55 : 1,010,756.84 = 405,749.10 : x - Step 2: Convert to fraction form
732,449.55/1,010,756.84 = 405,749.10/x - Step 3: Cross multiply
732,449.55x = 1,010,756.84 × 405,749.10 - Step 4: Simplify right side
732,449.55x = 410,113,676,120.10 - Step 5: Solve for x
x = 410,113,676,120.10/732,449.55 - Step 6: Final answer
x = 559,920.72
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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.