Finding the Fourth Proportional to 1,187,986.08, 1,639,495.44 and 651,442.08
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Solution
The fourth proportional to 1,187,986.08, 1,639,495.44 and 651,442.08 is: 899,031.01
Step by Step Solution
- Step 1: Write the proportion equation
1,187,986.08 : 1,639,495.44 = 651,442.08 : x - Step 2: Convert to fraction form
1,187,986.08/1,639,495.44 = 651,442.08/x - Step 3: Cross multiply
1,187,986.08x = 1,639,495.44 × 651,442.08 - Step 4: Simplify right side
1,187,986.08x = 1,068,036,319,584.12 - Step 5: Solve for x
x = 1,068,036,319,584.12/1,187,986.08 - Step 6: Final answer
x = 899,031.01
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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.