Finding the Fourth Proportional to 1,122,554.79, 1,549,197 and 639,162.18
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Solution
The fourth proportional to 1,122,554.79, 1,549,197 and 639,162.18 is: 882,084.46
Step by Step Solution
- Step 1: Write the proportion equation
1,122,554.79 : 1,549,197 = 639,162.18 : x - Step 2: Convert to fraction form
1,122,554.79/1,549,197 = 639,162.18/x - Step 3: Cross multiply
1,122,554.79x = 1,549,197 × 639,162.18 - Step 4: Simplify right side
1,122,554.79x = 990,188,131,769.46 - Step 5: Solve for x
x = 990,188,131,769.46/1,122,554.79 - Step 6: Final answer
x = 882,084.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.