Finding the Fourth Proportional to 979,515.17, 1,351,656.81 and 549,712.26
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Solution
The fourth proportional to 979,515.17, 1,351,656.81 and 549,712.26 is: 758,561.32
Step by Step Solution
- Step 1: Write the proportion equation
979,515.17 : 1,351,656.81 = 549,712.26 : x - Step 2: Convert to fraction form
979,515.17/1,351,656.81 = 549,712.26/x - Step 3: Cross multiply
979,515.17x = 1,351,656.81 × 549,712.26 - Step 4: Simplify right side
979,515.17x = 743,022,319,769.49 - Step 5: Solve for x
x = 743,022,319,769.49/979,515.17 - Step 6: Final answer
x = 758,561.32
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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.