Finding the Fourth Proportional to 1,187,987.88, 1,782,159.60 and 430,006.68
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Solution
The fourth proportional to 1,187,987.88, 1,782,159.60 and 430,006.68 is: 645,074.37
Step by Step Solution
- Step 1: Write the proportion equation
1,187,987.88 : 1,782,159.60 = 430,006.68 : x - Step 2: Convert to fraction form
1,187,987.88/1,782,159.60 = 430,006.68/x - Step 3: Cross multiply
1,187,987.88x = 1,782,159.60 × 430,006.68 - Step 4: Simplify right side
1,187,987.88x = 766,340,532,826.13 - Step 5: Solve for x
x = 766,340,532,826.13/1,187,987.88 - Step 6: Final answer
x = 645,074.37
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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.