Finding the Fourth Proportional to 1,689,147.99, 2,533,721.98 and 426,975.61
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Solution
The fourth proportional to 1,689,147.99, 2,533,721.98 and 426,975.61 is: 640,463.42
Step by Step Solution
- Step 1: Write the proportion equation
1,689,147.99 : 2,533,721.98 = 426,975.61 : x - Step 2: Convert to fraction form
1,689,147.99/2,533,721.98 = 426,975.61/x - Step 3: Cross multiply
1,689,147.99x = 2,533,721.98 × 426,975.61 - Step 4: Simplify right side
1,689,147.99x = 1,081,837,487,980.91 - Step 5: Solve for x
x = 1,081,837,487,980.91/1,689,147.99 - Step 6: Final answer
x = 640,463.42
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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.