Finding the Fourth Proportional to 567,511.19, 783,171.50 and 312,871.49
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Solution
The fourth proportional to 567,511.19, 783,171.50 and 312,871.49 is: 431,765.99
Step by Step Solution
- Step 1: Write the proportion equation
567,511.19 : 783,171.50 = 312,871.49 : x - Step 2: Convert to fraction form
567,511.19/783,171.50 = 312,871.49/x - Step 3: Cross multiply
567,511.19x = 783,171.50 × 312,871.49 - Step 4: Simplify right side
567,511.19x = 245,032,028,650.32 - Step 5: Solve for x
x = 245,032,028,650.32/567,511.19 - Step 6: Final answer
x = 431,765.99
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1.5x scale
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.