Finding the Fourth Proportional to 911,189.88, 1,257,455.34 and 529,216.65
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Solution
The fourth proportional to 911,189.88, 1,257,455.34 and 529,216.65 is: 730,326.70
Step by Step Solution
- Step 1: Write the proportion equation
911,189.88 : 1,257,455.34 = 529,216.65 : x - Step 2: Convert to fraction form
911,189.88/1,257,455.34 = 529,216.65/x - Step 3: Cross multiply
911,189.88x = 1,257,455.34 × 529,216.65 - Step 4: Simplify right side
911,189.88x = 665,466,302,559.41 - Step 5: Solve for x
x = 665,466,302,559.41/911,189.88 - Step 6: Final answer
x = 730,326.70
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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.