Finding the Fourth Proportional to 1,260,325.61, 1,890,478.69 and 313,689.95
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Solution
The fourth proportional to 1,260,325.61, 1,890,478.69 and 313,689.95 is: 470,532.50
Step by Step Solution
- Step 1: Write the proportion equation
1,260,325.61 : 1,890,478.69 = 313,689.95 : x - Step 2: Convert to fraction form
1,260,325.61/1,890,478.69 = 313,689.95/x - Step 3: Cross multiply
1,260,325.61x = 1,890,478.69 × 313,689.95 - Step 4: Simplify right side
1,260,325.61x = 593,024,154,721.32 - Step 5: Solve for x
x = 593,024,154,721.32/1,260,325.61 - Step 6: Final answer
x = 470,532.50
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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.