Finding the Fourth Proportional to 1,028,245.12, 1,418,776.50 and 646,051.12
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Solution
The fourth proportional to 1,028,245.12, 1,418,776.50 and 646,051.12 is: 891,423.78
Step by Step Solution
- Step 1: Write the proportion equation
1,028,245.12 : 1,418,776.50 = 646,051.12 : x - Step 2: Convert to fraction form
1,028,245.12/1,418,776.50 = 646,051.12/x - Step 3: Cross multiply
1,028,245.12x = 1,418,776.50 × 646,051.12 - Step 4: Simplify right side
1,028,245.12x = 916,602,146,854.68 - Step 5: Solve for x
x = 916,602,146,854.68/1,028,245.12 - Step 6: Final answer
x = 891,423.78
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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.