Finding the Fourth Proportional to 465,803.28, 698,665.95 and 128,848.09
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Solution
The fourth proportional to 465,803.28, 698,665.95 and 128,848.09 is: 193,261.36
Step by Step Solution
- Step 1: Write the proportion equation
465,803.28 : 698,665.95 = 128,848.09 : x - Step 2: Convert to fraction form
465,803.28/698,665.95 = 128,848.09/x - Step 3: Cross multiply
465,803.28x = 698,665.95 × 128,848.09 - Step 4: Simplify right side
465,803.28x = 90,021,773,205.54 - Step 5: Solve for x
x = 90,021,773,205.54/465,803.28 - Step 6: Final answer
x = 193,261.36
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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.