Finding the Fourth Proportional to 717,139.70, 1,075,366.44 and 417,705.70
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Solution
The fourth proportional to 717,139.70, 1,075,366.44 and 417,705.70 is: 626,358.70
Step by Step Solution
- Step 1: Write the proportion equation
717,139.70 : 1,075,366.44 = 417,705.70 : x - Step 2: Convert to fraction form
717,139.70/1,075,366.44 = 417,705.70/x - Step 3: Cross multiply
717,139.70x = 1,075,366.44 × 417,705.70 - Step 4: Simplify right side
717,139.70x = 449,186,691,576.71 - Step 5: Solve for x
x = 449,186,691,576.71/717,139.70 - Step 6: Final answer
x = 626,358.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.