Finding the Fourth Proportional to 830,628.72, 1,245,943.08 and 475,395.12
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Solution
The fourth proportional to 830,628.72, 1,245,943.08 and 475,395.12 is: 713,092.68
Step by Step Solution
- Step 1: Write the proportion equation
830,628.72 : 1,245,943.08 = 475,395.12 : x - Step 2: Convert to fraction form
830,628.72/1,245,943.08 = 475,395.12/x - Step 3: Cross multiply
830,628.72x = 1,245,943.08 × 475,395.12 - Step 4: Simplify right side
830,628.72x = 592,315,260,029.77 - Step 5: Solve for x
x = 592,315,260,029.77/830,628.72 - Step 6: Final answer
x = 713,092.68
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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.