Finding the Fourth Proportional to 1,970,107.68, 2,955,329.16 and 621,909.60
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Solution
The fourth proportional to 1,970,107.68, 2,955,329.16 and 621,909.60 is: 932,917.32
Step by Step Solution
- Step 1: Write the proportion equation
1,970,107.68 : 2,955,329.16 = 621,909.60 : x - Step 2: Convert to fraction form
1,970,107.68/2,955,329.16 = 621,909.60/x - Step 3: Cross multiply
1,970,107.68x = 2,955,329.16 × 621,909.60 - Step 4: Simplify right side
1,970,107.68x = 1,837,947,575,763.94 - Step 5: Solve for x
x = 1,837,947,575,763.94/1,970,107.68 - Step 6: Final answer
x = 932,917.32
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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.