Finding the Fourth Proportional to 839,064.20, 1,157,453.70 and 499,466.84
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Solution
The fourth proportional to 839,064.20, 1,157,453.70 and 499,466.84 is: 688,993.45
Step by Step Solution
- Step 1: Write the proportion equation
839,064.20 : 1,157,453.70 = 499,466.84 : x - Step 2: Convert to fraction form
839,064.20/1,157,453.70 = 499,466.84/x - Step 3: Cross multiply
839,064.20x = 1,157,453.70 × 499,466.84 - Step 4: Simplify right side
839,064.20x = 578,109,741,985.31 - Step 5: Solve for x
x = 578,109,741,985.31/839,064.20 - Step 6: Final answer
x = 688,993.45
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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.