Finding the Fourth Proportional to 869,427.41, 1,199,749.74 and 482,206.31
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Solution
The fourth proportional to 869,427.41, 1,199,749.74 and 482,206.31 is: 665,411.38
Step by Step Solution
- Step 1: Write the proportion equation
869,427.41 : 1,199,749.74 = 482,206.31 : x - Step 2: Convert to fraction form
869,427.41/1,199,749.74 = 482,206.31/x - Step 3: Cross multiply
869,427.41x = 1,199,749.74 × 482,206.31 - Step 4: Simplify right side
869,427.41x = 578,526,889,050.11 - Step 5: Solve for x
x = 578,526,889,050.11/869,427.41 - Step 6: Final answer
x = 665,411.38
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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.