Finding the Fourth Proportional to 2,129,753.98, 2,939,045.74 and 1,162,883.71
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Solution
The fourth proportional to 2,129,753.98, 2,939,045.74 and 1,162,883.71 is: 1,604,771.46
Step by Step Solution
- Step 1: Write the proportion equation
2,129,753.98 : 2,939,045.74 = 1,162,883.71 : x - Step 2: Convert to fraction form
2,129,753.98/2,939,045.74 = 1,162,883.71/x - Step 3: Cross multiply
2,129,753.98x = 2,939,045.74 × 1,162,883.71 - Step 4: Simplify right side
2,129,753.98x = 3,417,768,413,990.90 - Step 5: Solve for x
x = 3,417,768,413,990.90/2,129,753.98 - Step 6: Final answer
x = 1,604,771.46
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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.