Finding the Fourth Proportional to 723,286.80, 998,159.49 and 401,026.95
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Solution
The fourth proportional to 723,286.80, 998,159.49 and 401,026.95 is: 553,430.33
Step by Step Solution
- Step 1: Write the proportion equation
723,286.80 : 998,159.49 = 401,026.95 : x - Step 2: Convert to fraction form
723,286.80/998,159.49 = 401,026.95/x - Step 3: Cross multiply
723,286.80x = 998,159.49 × 401,026.95 - Step 4: Simplify right side
723,286.80x = 400,288,855,888.26 - Step 5: Solve for x
x = 400,288,855,888.26/723,286.80 - Step 6: Final answer
x = 553,430.33
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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.