Finding the Fourth Proportional to 474,984.99, 712,524.21 and 138,028.58
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Solution
The fourth proportional to 474,984.99, 712,524.21 and 138,028.58 is: 207,056.45
Step by Step Solution
- Step 1: Write the proportion equation
474,984.99 : 712,524.21 = 138,028.58 : x - Step 2: Convert to fraction form
474,984.99/712,524.21 = 138,028.58/x - Step 3: Cross multiply
474,984.99x = 712,524.21 × 138,028.58 - Step 4: Simplify right side
474,984.99x = 98,348,704,921.92 - Step 5: Solve for x
x = 98,348,704,921.92/474,984.99 - Step 6: Final answer
x = 207,056.45
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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.