Finding the Fourth Proportional to 1,422,675.14, 1,963,266.98 and 778,081.19
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Solution
The fourth proportional to 1,422,675.14, 1,963,266.98 and 778,081.19 is: 1,073,738.52
Step by Step Solution
- Step 1: Write the proportion equation
1,422,675.14 : 1,963,266.98 = 778,081.19 : x - Step 2: Convert to fraction form
1,422,675.14/1,963,266.98 = 778,081.19/x - Step 3: Cross multiply
1,422,675.14x = 1,963,266.98 × 778,081.19 - Step 4: Simplify right side
1,422,675.14x = 1,527,581,094,379.37 - Step 5: Solve for x
x = 1,527,581,094,379.37/1,422,675.14 - Step 6: Final answer
x = 1,073,738.52
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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.