Finding the Fourth Proportional to 4,639,352.60, 6,958,875.80 and 1,906,805.72
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Solution
The fourth proportional to 4,639,352.60, 6,958,875.80 and 1,906,805.72 is: 2,860,145.65
Step by Step Solution
- Step 1: Write the proportion equation
4,639,352.60 : 6,958,875.80 = 1,906,805.72 : x - Step 2: Convert to fraction form
4,639,352.60/6,958,875.80 = 1,906,805.72/x - Step 3: Cross multiply
4,639,352.60x = 6,958,875.80 × 1,906,805.72 - Step 4: Simplify right side
4,639,352.60x = 13,269,224,180,209.58 - Step 5: Solve for x
x = 13,269,224,180,209.58/4,639,352.60 - Step 6: Final answer
x = 2,860,145.65
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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.