Finding the Fourth Proportional to 774,639.40, 1,158,848.70 and 670,613.80
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Solution
The fourth proportional to 774,639.40, 1,158,848.70 and 670,613.80 is: 1,003,227.99
Step by Step Solution
- Step 1: Write the proportion equation
774,639.40 : 1,158,848.70 = 670,613.80 : x - Step 2: Convert to fraction form
774,639.40/1,158,848.70 = 670,613.80/x - Step 3: Cross multiply
774,639.40x = 1,158,848.70 × 670,613.80 - Step 4: Simplify right side
774,639.40x = 777,139,930,332.06 - Step 5: Solve for x
x = 777,139,930,332.06/774,639.40 - Step 6: Final answer
x = 1,003,227.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.