Finding the Fourth Proportional to 514,130.40, 709,499.88 and 287,776.08
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Solution
The fourth proportional to 514,130.40, 709,499.88 and 287,776.08 is: 397,130.95
Step by Step Solution
- Step 1: Write the proportion equation
514,130.40 : 709,499.88 = 287,776.08 : x - Step 2: Convert to fraction form
514,130.40/709,499.88 = 287,776.08/x - Step 3: Cross multiply
514,130.40x = 709,499.88 × 287,776.08 - Step 4: Simplify right side
514,130.40x = 204,177,094,226.87 - Step 5: Solve for x
x = 204,177,094,226.87/514,130.40 - Step 6: Final answer
x = 397,130.95
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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.