Finding the Fourth Proportional to 686,034.63, 1,029,052.35 and 286,457.58
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Solution
The fourth proportional to 686,034.63, 1,029,052.35 and 286,457.58 is: 429,686.54
Step by Step Solution
- Step 1: Write the proportion equation
686,034.63 : 1,029,052.35 = 286,457.58 : x - Step 2: Convert to fraction form
686,034.63/1,029,052.35 = 286,457.58/x - Step 3: Cross multiply
686,034.63x = 1,029,052.35 × 286,457.58 - Step 4: Simplify right side
686,034.63x = 294,779,845,874.31 - Step 5: Solve for x
x = 294,779,845,874.31/686,034.63 - Step 6: Final answer
x = 429,686.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.