Finding the Fourth Proportional to 1,286,369.15, 1,774,954.62 and 742,306.41
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Solution
The fourth proportional to 1,286,369.15, 1,774,954.62 and 742,306.41 is: 1,024,247.35
Step by Step Solution
- Step 1: Write the proportion equation
1,286,369.15 : 1,774,954.62 = 742,306.41 : x - Step 2: Convert to fraction form
1,286,369.15/1,774,954.62 = 742,306.41/x - Step 3: Cross multiply
1,286,369.15x = 1,774,954.62 × 742,306.41 - Step 4: Simplify right side
1,286,369.15x = 1,317,560,191,885.11 - Step 5: Solve for x
x = 1,317,560,191,885.11/1,286,369.15 - Step 6: Final answer
x = 1,024,247.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.