Finding the Fourth Proportional to 1,432,939.52, 1,977,394.20 and 788,318.84
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Solution
The fourth proportional to 1,432,939.52, 1,977,394.20 and 788,318.84 is: 1,087,845.70
Step by Step Solution
- Step 1: Write the proportion equation
1,432,939.52 : 1,977,394.20 = 788,318.84 : x - Step 2: Convert to fraction form
1,432,939.52/1,977,394.20 = 788,318.84/x - Step 3: Cross multiply
1,432,939.52x = 1,977,394.20 × 788,318.84 - Step 4: Simplify right side
1,432,939.52x = 1,558,817,101,966.73 - Step 5: Solve for x
x = 1,558,817,101,966.73/1,432,939.52 - Step 6: Final answer
x = 1,087,845.70
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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.