Finding the Fourth Proportional to 2,309,718.48, 3,187,432.18 and 1,277,295.74
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Solution
The fourth proportional to 2,309,718.48, 3,187,432.18 and 1,277,295.74 is: 1,762,679.56
Step by Step Solution
- Step 1: Write the proportion equation
2,309,718.48 : 3,187,432.18 = 1,277,295.74 : x - Step 2: Convert to fraction form
2,309,718.48/3,187,432.18 = 1,277,295.74/x - Step 3: Cross multiply
2,309,718.48x = 3,187,432.18 × 1,277,295.74 - Step 4: Simplify right side
2,309,718.48x = 4,071,293,545,052.91 - Step 5: Solve for x
x = 4,071,293,545,052.91/2,309,718.48 - Step 6: Final answer
x = 1,762,679.56
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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.