Finding the Fourth Proportional to 1,129,068.24, 1,558,137.33 and 639,037.75
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Solution
The fourth proportional to 1,129,068.24, 1,558,137.33 and 639,037.75 is: 881,885.20
Step by Step Solution
- Step 1: Write the proportion equation
1,129,068.24 : 1,558,137.33 = 639,037.75 : x - Step 2: Convert to fraction form
1,129,068.24/1,558,137.33 = 639,037.75/x - Step 3: Cross multiply
1,129,068.24x = 1,558,137.33 × 639,037.75 - Step 4: Simplify right side
1,129,068.24x = 995,708,567,262.47 - Step 5: Solve for x
x = 995,708,567,262.47/1,129,068.24 - Step 6: Final answer
x = 881,885.20
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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.