Finding the Fourth Proportional to 652,139.40, 977,042.70 and 402,529.80
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Solution
The fourth proportional to 652,139.40, 977,042.70 and 402,529.80 is: 603,074.75
Step by Step Solution
- Step 1: Write the proportion equation
652,139.40 : 977,042.70 = 402,529.80 : x - Step 2: Convert to fraction form
652,139.40/977,042.70 = 402,529.80/x - Step 3: Cross multiply
652,139.40x = 977,042.70 × 402,529.80 - Step 4: Simplify right side
652,139.40x = 393,288,802,622.46 - Step 5: Solve for x
x = 393,288,802,622.46/652,139.40 - Step 6: Final answer
x = 603,074.75
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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.