Finding the Fourth Proportional to 992,365.98, 1,489,041.32 and 393,313.88
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Solution
The fourth proportional to 992,365.98, 1,489,041.32 and 393,313.88 is: 590,165.95
Step by Step Solution
- Step 1: Write the proportion equation
992,365.98 : 1,489,041.32 = 393,313.88 : x - Step 2: Convert to fraction form
992,365.98/1,489,041.32 = 393,313.88/x - Step 3: Cross multiply
992,365.98x = 1,489,041.32 × 393,313.88 - Step 4: Simplify right side
992,365.98x = 585,660,609,637.75 - Step 5: Solve for x
x = 585,660,609,637.75/992,365.98 - Step 6: Final answer
x = 590,165.95
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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.