Finding the Fourth Proportional to 1,207,984.74, 1,667,030.15 and 664,124.35
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Solution
The fourth proportional to 1,207,984.74, 1,667,030.15 and 664,124.35 is: 916,497.77
Step by Step Solution
- Step 1: Write the proportion equation
1,207,984.74 : 1,667,030.15 = 664,124.35 : x - Step 2: Convert to fraction form
1,207,984.74/1,667,030.15 = 664,124.35/x - Step 3: Cross multiply
1,207,984.74x = 1,667,030.15 × 664,124.35 - Step 4: Simplify right side
1,207,984.74x = 1,107,115,314,799.15 - Step 5: Solve for x
x = 1,107,115,314,799.15/1,207,984.74 - Step 6: Final answer
x = 916,497.77
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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.