Finding the Fourth Proportional to 439,206.70, 657,352.05 and 318,921.70
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Solution
The fourth proportional to 439,206.70, 657,352.05 and 318,921.70 is: 477,323.85
Step by Step Solution
- Step 1: Write the proportion equation
439,206.70 : 657,352.05 = 318,921.70 : x - Step 2: Convert to fraction form
439,206.70/657,352.05 = 318,921.70/x - Step 3: Cross multiply
439,206.70x = 657,352.05 × 318,921.70 - Step 4: Simplify right side
439,206.70x = 209,643,833,284.49 - Step 5: Solve for x
x = 209,643,833,284.49/439,206.70 - Step 6: Final answer
x = 477,323.85
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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.