Finding the Fourth Proportional to 772,920.85, 1,066,641.29 and 578,984.99
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Solution
The fourth proportional to 772,920.85, 1,066,641.29 and 578,984.99 is: 799,007.16
Step by Step Solution
- Step 1: Write the proportion equation
772,920.85 : 1,066,641.29 = 578,984.99 : x - Step 2: Convert to fraction form
772,920.85/1,066,641.29 = 578,984.99/x - Step 3: Cross multiply
772,920.85x = 1,066,641.29 × 578,984.99 - Step 4: Simplify right side
772,920.85x = 617,569,293,729.31 - Step 5: Solve for x
x = 617,569,293,729.31/772,920.85 - Step 6: Final answer
x = 799,007.16
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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.