Finding the Fourth Proportional to 790,503.32, 1,090,621.98 and 446,296.28
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Solution
The fourth proportional to 790,503.32, 1,090,621.98 and 446,296.28 is: 615,734.96
Step by Step Solution
- Step 1: Write the proportion equation
790,503.32 : 1,090,621.98 = 446,296.28 : x - Step 2: Convert to fraction form
790,503.32/1,090,621.98 = 446,296.28/x - Step 3: Cross multiply
790,503.32x = 1,090,621.98 × 446,296.28 - Step 4: Simplify right side
790,503.32x = 486,740,532,560.23 - Step 5: Solve for x
x = 486,740,532,560.23/790,503.32 - Step 6: Final answer
x = 615,734.96
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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.