Finding the Fourth Proportional to 2,531,555.06, 3,494,043.98 and 1,918,638.74
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Solution
The fourth proportional to 2,531,555.06, 3,494,043.98 and 1,918,638.74 is: 2,648,098.89
Step by Step Solution
- Step 1: Write the proportion equation
2,531,555.06 : 3,494,043.98 = 1,918,638.74 : x - Step 2: Convert to fraction form
2,531,555.06/3,494,043.98 = 1,918,638.74/x - Step 3: Cross multiply
2,531,555.06x = 3,494,043.98 × 1,918,638.74 - Step 4: Simplify right side
2,531,555.06x = 6,703,808,139,291.79 - Step 5: Solve for x
x = 6,703,808,139,291.79/2,531,555.06 - Step 6: Final answer
x = 2,648,098.89
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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.