Finding the Fourth Proportional to 405,974.70, 569,297.70 and 405,974.70
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Solution
The fourth proportional to 405,974.70, 569,297.70 and 405,974.70 is: 569,297.70
Step by Step Solution
- Step 1: Write the proportion equation
405,974.70 : 569,297.70 = 405,974.70 : x - Step 2: Convert to fraction form
405,974.70/569,297.70 = 405,974.70/x - Step 3: Cross multiply
405,974.70x = 569,297.70 × 405,974.70 - Step 4: Simplify right side
405,974.70x = 231,120,462,968.19 - Step 5: Solve for x
x = 231,120,462,968.19/405,974.70 - Step 6: Final answer
x = 569,297.70
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.