Finding the Fourth Proportional to 1,188,373.75, 1,639,958.48 and 679,074.91
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Solution
The fourth proportional to 1,188,373.75, 1,639,958.48 and 679,074.91 is: 937,124.92
Step by Step Solution
- Step 1: Write the proportion equation
1,188,373.75 : 1,639,958.48 = 679,074.91 : x - Step 2: Convert to fraction form
1,188,373.75/1,639,958.48 = 679,074.91/x - Step 3: Cross multiply
1,188,373.75x = 1,639,958.48 × 679,074.91 - Step 4: Simplify right side
1,188,373.75x = 1,113,654,657,209.74 - Step 5: Solve for x
x = 1,113,654,657,209.74/1,188,373.75 - Step 6: Final answer
x = 937,124.92
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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.