Finding the Fourth Proportional to 1,138,251.40, 1,705,130.70 and 577,688.20
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Solution
The fourth proportional to 1,138,251.40, 1,705,130.70 and 577,688.20 is: 865,392.20
Step by Step Solution
- Step 1: Write the proportion equation
1,138,251.40 : 1,705,130.70 = 577,688.20 : x - Step 2: Convert to fraction form
1,138,251.40/1,705,130.70 = 577,688.20/x - Step 3: Cross multiply
1,138,251.40x = 1,705,130.70 × 577,688.20 - Step 4: Simplify right side
1,138,251.40x = 985,033,884,847.74 - Step 5: Solve for x
x = 985,033,884,847.74/1,138,251.40 - Step 6: Final answer
x = 865,392.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.