Finding the Fourth Proportional to 1,387,812.53, 1,914,594.84 and 929,074.88
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Solution
The fourth proportional to 1,387,812.53, 1,914,594.84 and 929,074.88 is: 1,281,730.73
Step by Step Solution
- Step 1: Write the proportion equation
1,387,812.53 : 1,914,594.84 = 929,074.88 : x - Step 2: Convert to fraction form
1,387,812.53/1,914,594.84 = 929,074.88/x - Step 3: Cross multiply
1,387,812.53x = 1,914,594.84 × 929,074.88 - Step 4: Simplify right side
1,387,812.53x = 1,778,801,971,221.62 - Step 5: Solve for x
x = 1,778,801,971,221.62/1,387,812.53 - Step 6: Final answer
x = 1,281,730.73
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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.