Finding the Fourth Proportional to 563,139.68, 777,133.68 and 308,485.28
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Solution
The fourth proportional to 563,139.68, 777,133.68 and 308,485.28 is: 425,710.19
Step by Step Solution
- Step 1: Write the proportion equation
563,139.68 : 777,133.68 = 308,485.28 : x - Step 2: Convert to fraction form
563,139.68/777,133.68 = 308,485.28/x - Step 3: Cross multiply
563,139.68x = 777,133.68 × 308,485.28 - Step 4: Simplify right side
563,139.68x = 239,734,300,872.23 - Step 5: Solve for x
x = 239,734,300,872.23/563,139.68 - Step 6: Final answer
x = 425,710.19
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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.