Finding the Fourth Proportional to 708,863.67, 978,289.99 and 403,036.02
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Solution
The fourth proportional to 708,863.67, 978,289.99 and 403,036.02 is: 556,222.75
Step by Step Solution
- Step 1: Write the proportion equation
708,863.67 : 978,289.99 = 403,036.02 : x - Step 2: Convert to fraction form
708,863.67/978,289.99 = 403,036.02/x - Step 3: Cross multiply
708,863.67x = 978,289.99 × 403,036.02 - Step 4: Simplify right side
708,863.67x = 394,286,102,967.85 - Step 5: Solve for x
x = 394,286,102,967.85/708,863.67 - Step 6: Final answer
x = 556,222.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.