Finding the Fourth Proportional to 820,368, 1,132,107.84 and 462,741.12
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Solution
The fourth proportional to 820,368, 1,132,107.84 and 462,741.12 is: 638,582.75
Step by Step Solution
- Step 1: Write the proportion equation
820,368 : 1,132,107.84 = 462,741.12 : x - Step 2: Convert to fraction form
820,368/1,132,107.84 = 462,741.12/x - Step 3: Cross multiply
820,368x = 1,132,107.84 × 462,741.12 - Step 4: Simplify right side
820,368x = 523,872,849,842.38 - Step 5: Solve for x
x = 523,872,849,842.38/820,368 - Step 6: Final answer
x = 638,582.75
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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.