Finding the Fourth Proportional to 998,430.80, 1,497,646.20 and 821,283.80
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Solution
The fourth proportional to 998,430.80, 1,497,646.20 and 821,283.80 is: 1,231,925.70
Step by Step Solution
- Step 1: Write the proportion equation
998,430.80 : 1,497,646.20 = 821,283.80 : x - Step 2: Convert to fraction form
998,430.80/1,497,646.20 = 821,283.80/x - Step 3: Cross multiply
998,430.80x = 1,497,646.20 × 821,283.80 - Step 4: Simplify right side
998,430.80x = 1,229,992,562,191.56 - Step 5: Solve for x
x = 1,229,992,562,191.56/998,430.80 - Step 6: Final answer
x = 1,231,925.70
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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.