Finding the Fourth Proportional to 1,102,630.18, 1,653,940.65 and 429,181.13
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Solution
The fourth proportional to 1,102,630.18, 1,653,940.65 and 429,181.13 is: 643,769.89
Step by Step Solution
- Step 1: Write the proportion equation
1,102,630.18 : 1,653,940.65 = 429,181.13 : x - Step 2: Convert to fraction form
1,102,630.18/1,653,940.65 = 429,181.13/x - Step 3: Cross multiply
1,102,630.18x = 1,653,940.65 × 429,181.13 - Step 4: Simplify right side
1,102,630.18x = 709,840,108,850.23 - Step 5: Solve for x
x = 709,840,108,850.23/1,102,630.18 - Step 6: Final answer
x = 643,769.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.