Finding the Fourth Proportional to 1,931,720.88, 2,896,400.34 and 921,151.92
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Solution
The fourth proportional to 1,931,720.88, 2,896,400.34 and 921,151.92 is: 1,381,164.72
Step by Step Solution
- Step 1: Write the proportion equation
1,931,720.88 : 2,896,400.34 = 921,151.92 : x - Step 2: Convert to fraction form
1,931,720.88/2,896,400.34 = 921,151.92/x - Step 3: Cross multiply
1,931,720.88x = 2,896,400.34 × 921,151.92 - Step 4: Simplify right side
1,931,720.88x = 2,668,024,734,279.65 - Step 5: Solve for x
x = 2,668,024,734,279.65/1,931,720.88 - Step 6: Final answer
x = 1,381,164.72
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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.