Finding the Fourth Proportional to 1,238,731.67, 1,858,282.18 and 439,946.12
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Solution
The fourth proportional to 1,238,731.67, 1,858,282.18 and 439,946.12 is: 659,984.77
Step by Step Solution
- Step 1: Write the proportion equation
1,238,731.67 : 1,858,282.18 = 439,946.12 : x - Step 2: Convert to fraction form
1,238,731.67/1,858,282.18 = 439,946.12/x - Step 3: Cross multiply
1,238,731.67x = 1,858,282.18 × 439,946.12 - Step 4: Simplify right side
1,238,731.67x = 817,544,034,956.14 - Step 5: Solve for x
x = 817,544,034,956.14/1,238,731.67 - Step 6: Final answer
x = 659,984.77
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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.