Finding the Fourth Proportional to 563,140.97, 777,128.35 and 305,011.50
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Solution
The fourth proportional to 563,140.97, 777,128.35 and 305,011.50 is: 420,912.52
Step by Step Solution
- Step 1: Write the proportion equation
563,140.97 : 777,128.35 = 305,011.50 : x - Step 2: Convert to fraction form
563,140.97/777,128.35 = 305,011.50/x - Step 3: Cross multiply
563,140.97x = 777,128.35 × 305,011.50 - Step 4: Simplify right side
563,140.97x = 237,033,083,726.03 - Step 5: Solve for x
x = 237,033,083,726.03/563,140.97 - Step 6: Final answer
x = 420,912.52
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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.