Finding the Fourth Proportional to 517,683.10, 714,395.84 and 299,921.46
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Solution
The fourth proportional to 517,683.10, 714,395.84 and 299,921.46 is: 413,887.65
Step by Step Solution
- Step 1: Write the proportion equation
517,683.10 : 714,395.84 = 299,921.46 : x - Step 2: Convert to fraction form
517,683.10/714,395.84 = 299,921.46/x - Step 3: Cross multiply
517,683.10x = 714,395.84 × 299,921.46 - Step 4: Simplify right side
517,683.10x = 214,262,639,778.75 - Step 5: Solve for x
x = 214,262,639,778.75/517,683.10 - Step 6: Final answer
x = 413,887.65
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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.