Finding the Fourth Proportional to 685,309.99, 1,026,841.41 and 485,271.28
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Solution
The fourth proportional to 685,309.99, 1,026,841.41 and 485,271.28 is: 727,111.31
Step by Step Solution
- Step 1: Write the proportion equation
685,309.99 : 1,026,841.41 = 485,271.28 : x - Step 2: Convert to fraction form
685,309.99/1,026,841.41 = 485,271.28/x - Step 3: Cross multiply
685,309.99x = 1,026,841.41 × 485,271.28 - Step 4: Simplify right side
685,309.99x = 498,296,645,387.71 - Step 5: Solve for x
x = 498,296,645,387.71/685,309.99 - Step 6: Final answer
x = 727,111.31
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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.