Finding the Fourth Proportional to 726,005,152.48, 1,084,378,486.16 and 656,811,271.84
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Solution
The fourth proportional to 726,005,152.48, 1,084,378,486.16 and 656,811,271.84 is: 981,028,867.66
Step by Step Solution
- Step 1: Write the proportion equation
726,005,152.48 : 1,084,378,486.16 = 656,811,271.84 : x - Step 2: Convert to fraction form
726,005,152.48/1,084,378,486.16 = 656,811,271.84/x - Step 3: Cross multiply
726,005,152.48x = 1,084,378,486.16 × 656,811,271.84 - Step 4: Simplify right side
726,005,152.48x = 712,232,012,650,683,520 - Step 5: Solve for x
x = 712,232,012,650,683,520/726,005,152.48 - Step 6: Final answer
x = 981,028,867.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.