Finding the Fourth Proportional to 1,313,780.68, 1,970,965.86 and 415,274.68
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Solution
The fourth proportional to 1,313,780.68, 1,970,965.86 and 415,274.68 is: 623,005.22
Step by Step Solution
- Step 1: Write the proportion equation
1,313,780.68 : 1,970,965.86 = 415,274.68 : x - Step 2: Convert to fraction form
1,313,780.68/1,970,965.86 = 415,274.68/x - Step 3: Cross multiply
1,313,780.68x = 1,970,965.86 × 415,274.68 - Step 4: Simplify right side
1,313,780.68x = 818,492,216,802.43 - Step 5: Solve for x
x = 818,492,216,802.43/1,313,780.68 - Step 6: Final answer
x = 623,005.22
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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.