Finding the Fourth Proportional to 753,228.16, 1,039,201.99 and 426,496.50
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Solution
The fourth proportional to 753,228.16, 1,039,201.99 and 426,496.50 is: 588,421.99
Step by Step Solution
- Step 1: Write the proportion equation
753,228.16 : 1,039,201.99 = 426,496.50 : x - Step 2: Convert to fraction form
753,228.16/1,039,201.99 = 426,496.50/x - Step 3: Cross multiply
753,228.16x = 1,039,201.99 × 426,496.50 - Step 4: Simplify right side
753,228.16x = 443,216,011,528.04 - Step 5: Solve for x
x = 443,216,011,528.04/753,228.16 - Step 6: Final answer
x = 588,421.99
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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.