Finding the Fourth Proportional to 1,225,425.92, 1,691,239.68 and 688,881.92
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Solution
The fourth proportional to 1,225,425.92, 1,691,239.68 and 688,881.92 is: 950,742.45
Step by Step Solution
- Step 1: Write the proportion equation
1,225,425.92 : 1,691,239.68 = 688,881.92 : x - Step 2: Convert to fraction form
1,225,425.92/1,691,239.68 = 688,881.92/x - Step 3: Cross multiply
1,225,425.92x = 1,691,239.68 × 688,881.92 - Step 4: Simplify right side
1,225,425.92x = 1,165,064,437,938.59 - Step 5: Solve for x
x = 1,165,064,437,938.59/1,225,425.92 - Step 6: Final answer
x = 950,742.45
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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.