Finding the Fourth Proportional to 695,489.12, 959,778.96 and 409,021.28
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Solution
The fourth proportional to 695,489.12, 959,778.96 and 409,021.28 is: 564,451.70
Step by Step Solution
- Step 1: Write the proportion equation
695,489.12 : 959,778.96 = 409,021.28 : x - Step 2: Convert to fraction form
695,489.12/959,778.96 = 409,021.28/x - Step 3: Cross multiply
695,489.12x = 959,778.96 × 409,021.28 - Step 4: Simplify right side
695,489.12x = 392,570,018,736.27 - Step 5: Solve for x
x = 392,570,018,736.27/695,489.12 - Step 6: Final answer
x = 564,451.70
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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.