Finding the Fourth Proportional to 630,619.92, 868,776.84 and 439,287.12
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Solution
The fourth proportional to 630,619.92, 868,776.84 and 439,287.12 is: 605,186.20
Step by Step Solution
- Step 1: Write the proportion equation
630,619.92 : 868,776.84 = 439,287.12 : x - Step 2: Convert to fraction form
630,619.92/868,776.84 = 439,287.12/x - Step 3: Cross multiply
630,619.92x = 868,776.84 × 439,287.12 - Step 4: Simplify right side
630,619.92x = 381,642,475,966.30 - Step 5: Solve for x
x = 381,642,475,966.30/630,619.92 - Step 6: Final answer
x = 605,186.20
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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.