Finding the Fourth Proportional to 1,621,890.61, 2,238,118.67 and 896,695.99
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Solution
The fourth proportional to 1,621,890.61, 2,238,118.67 and 896,695.99 is: 1,237,390.50
Step by Step Solution
- Step 1: Write the proportion equation
1,621,890.61 : 2,238,118.67 = 896,695.99 : x - Step 2: Convert to fraction form
1,621,890.61/2,238,118.67 = 896,695.99/x - Step 3: Cross multiply
1,621,890.61x = 2,238,118.67 × 896,695.99 - Step 4: Simplify right side
1,621,890.61x = 2,006,912,020,859.06 - Step 5: Solve for x
x = 2,006,912,020,859.06/1,621,890.61 - Step 6: Final answer
x = 1,237,390.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.