Finding the Fourth Proportional to 617,419.80, 926,129.70 and 302,491.80
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Solution
The fourth proportional to 617,419.80, 926,129.70 and 302,491.80 is: 453,737.70
Step by Step Solution
- Step 1: Write the proportion equation
617,419.80 : 926,129.70 = 302,491.80 : x - Step 2: Convert to fraction form
617,419.80/926,129.70 = 302,491.80/x - Step 3: Cross multiply
617,419.80x = 926,129.70 × 302,491.80 - Step 4: Simplify right side
617,419.80x = 280,146,639,986.46 - Step 5: Solve for x
x = 280,146,639,986.46/617,419.80 - Step 6: Final answer
x = 453,737.70
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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.