Finding the Fourth Proportional to 726,000.26, 1,001,904.70 and 399,327.09
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Solution
The fourth proportional to 726,000.26, 1,001,904.70 and 399,327.09 is: 551,084.77
Step by Step Solution
- Step 1: Write the proportion equation
726,000.26 : 1,001,904.70 = 399,327.09 : x - Step 2: Convert to fraction form
726,000.26/1,001,904.70 = 399,327.09/x - Step 3: Cross multiply
726,000.26x = 1,001,904.70 × 399,327.09 - Step 4: Simplify right side
726,000.26x = 400,087,688,807.48 - Step 5: Solve for x
x = 400,087,688,807.48/726,000.26 - Step 6: Final answer
x = 551,084.77
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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.