Finding the Fourth Proportional to 1,286,130.72, 1,774,732.52 and 742,441.67
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Solution
The fourth proportional to 1,286,130.72, 1,774,732.52 and 742,441.67 is: 1,024,495.68
Step by Step Solution
- Step 1: Write the proportion equation
1,286,130.72 : 1,774,732.52 = 742,441.67 : x - Step 2: Convert to fraction form
1,286,130.72/1,774,732.52 = 742,441.67/x - Step 3: Cross multiply
1,286,130.72x = 1,774,732.52 × 742,441.67 - Step 4: Simplify right side
1,286,130.72x = 1,317,635,363,366.24 - Step 5: Solve for x
x = 1,317,635,363,366.24/1,286,130.72 - Step 6: Final answer
x = 1,024,495.68
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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.