Finding the Fourth Proportional to 809,478.28, 1,117,081.68 and 446,902.84
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Solution
The fourth proportional to 809,478.28, 1,117,081.68 and 446,902.84 is: 616,726.83
Step by Step Solution
- Step 1: Write the proportion equation
809,478.28 : 1,117,081.68 = 446,902.84 : x - Step 2: Convert to fraction form
809,478.28/1,117,081.68 = 446,902.84/x - Step 3: Cross multiply
809,478.28x = 1,117,081.68 × 446,902.84 - Step 4: Simplify right side
809,478.28x = 499,226,975,303.97 - Step 5: Solve for x
x = 499,226,975,303.97/809,478.28 - Step 6: Final answer
x = 616,726.83
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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.