Finding the Fourth Proportional to 485,395.14, 728,420.76 and 169,854.78
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Solution
The fourth proportional to 485,395.14, 728,420.76 and 169,854.78 is: 254,896.96
Step by Step Solution
- Step 1: Write the proportion equation
485,395.14 : 728,420.76 = 169,854.78 : x - Step 2: Convert to fraction form
485,395.14/728,420.76 = 169,854.78/x - Step 3: Cross multiply
485,395.14x = 728,420.76 × 169,854.78 - Step 4: Simplify right side
485,395.14x = 123,725,747,937.23 - Step 5: Solve for x
x = 123,725,747,937.23/485,395.14 - Step 6: Final answer
x = 254,896.96
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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.