Finding the Fourth Proportional to 1,119,783.90, 1,545,324.99 and 629,762.79
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Solution
The fourth proportional to 1,119,783.90, 1,545,324.99 and 629,762.79 is: 869,085.70
Step by Step Solution
- Step 1: Write the proportion equation
1,119,783.90 : 1,545,324.99 = 629,762.79 : x - Step 2: Convert to fraction form
1,119,783.90/1,545,324.99 = 629,762.79/x - Step 3: Cross multiply
1,119,783.90x = 1,545,324.99 × 629,762.79 - Step 4: Simplify right side
1,119,783.90x = 973,188,177,159.12 - Step 5: Solve for x
x = 973,188,177,159.12/1,119,783.90 - Step 6: Final answer
x = 869,085.70
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1.5x scale
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.