Finding the Fourth Proportional to 1,112,637.80, 1,668,227.70 and 438,312.80
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Solution
The fourth proportional to 1,112,637.80, 1,668,227.70 and 438,312.80 is: 657,182.02
Step by Step Solution
- Step 1: Write the proportion equation
1,112,637.80 : 1,668,227.70 = 438,312.80 : x - Step 2: Convert to fraction form
1,112,637.80/1,668,227.70 = 438,312.80/x - Step 3: Cross multiply
1,112,637.80x = 1,668,227.70 × 438,312.80 - Step 4: Simplify right side
1,112,637.80x = 731,205,554,224.56 - Step 5: Solve for x
x = 731,205,554,224.56/1,112,637.80 - Step 6: Final answer
x = 657,182.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.