Finding the Fourth Proportional to 992,771.73, 1,487,848.99 and 393,405.93
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Solution
The fourth proportional to 992,771.73, 1,487,848.99 and 393,405.93 is: 589,590.33
Step by Step Solution
- Step 1: Write the proportion equation
992,771.73 : 1,487,848.99 = 393,405.93 : x - Step 2: Convert to fraction form
992,771.73/1,487,848.99 = 393,405.93/x - Step 3: Cross multiply
992,771.73x = 1,487,848.99 × 393,405.93 - Step 4: Simplify right side
992,771.73x = 585,328,615,610.51 - Step 5: Solve for x
x = 585,328,615,610.51/992,771.73 - Step 6: Final answer
x = 589,590.33
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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.