Finding the Fourth Proportional to 772,039.99, 1,065,457.67 and 427,868.75
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Solution
The fourth proportional to 772,039.99, 1,065,457.67 and 427,868.75 is: 590,482.42
Step by Step Solution
- Step 1: Write the proportion equation
772,039.99 : 1,065,457.67 = 427,868.75 : x - Step 2: Convert to fraction form
772,039.99/1,065,457.67 = 427,868.75/x - Step 3: Cross multiply
772,039.99x = 1,065,457.67 × 427,868.75 - Step 4: Simplify right side
772,039.99x = 455,876,041,440.81 - Step 5: Solve for x
x = 455,876,041,440.81/772,039.99 - Step 6: Final answer
x = 590,482.42
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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.