Finding the Fourth Proportional to 725,656.26, 1,001,417.70 and 398,983.08
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Solution
The fourth proportional to 725,656.26, 1,001,417.70 and 398,983.08 is: 550,603.28
Step by Step Solution
- Step 1: Write the proportion equation
725,656.26 : 1,001,417.70 = 398,983.08 : x - Step 2: Convert to fraction form
725,656.26/1,001,417.70 = 398,983.08/x - Step 3: Cross multiply
725,656.26x = 1,001,417.70 × 398,983.08 - Step 4: Simplify right side
725,656.26x = 399,548,718,312.52 - Step 5: Solve for x
x = 399,548,718,312.52/725,656.26 - Step 6: Final answer
x = 550,603.28
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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.