Finding the Fourth Proportional to 1,420,539.48, 2,131,124.04 and 409,582.53
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Solution
The fourth proportional to 1,420,539.48, 2,131,124.04 and 409,582.53 is: 614,464.57
Step by Step Solution
- Step 1: Write the proportion equation
1,420,539.48 : 2,131,124.04 = 409,582.53 : x - Step 2: Convert to fraction form
1,420,539.48/2,131,124.04 = 409,582.53/x - Step 3: Cross multiply
1,420,539.48x = 2,131,124.04 × 409,582.53 - Step 4: Simplify right side
1,420,539.48x = 872,871,176,047.02 - Step 5: Solve for x
x = 872,871,176,047.02/1,420,539.48 - Step 6: Final answer
x = 614,464.57
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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.