Finding the Fourth Proportional to 2,840,420.47, 3,919,876.98 and 1,679,861.58
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Solution
The fourth proportional to 2,840,420.47, 3,919,876.98 and 1,679,861.58 is: 2,318,266.19
Step by Step Solution
- Step 1: Write the proportion equation
2,840,420.47 : 3,919,876.98 = 1,679,861.58 : x - Step 2: Convert to fraction form
2,840,420.47/3,919,876.98 = 1,679,861.58/x - Step 3: Cross multiply
2,840,420.47x = 3,919,876.98 × 1,679,861.58 - Step 4: Simplify right side
2,840,420.47x = 6,584,850,742,628.47 - Step 5: Solve for x
x = 6,584,850,742,628.47/2,840,420.47 - Step 6: Final answer
x = 2,318,266.19
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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.