Finding the Fourth Proportional to 1,205,898.12, 1,664,076.96 and 715,888.08
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Solution
The fourth proportional to 1,205,898.12, 1,664,076.96 and 715,888.08 is: 987,888.48
Step by Step Solution
- Step 1: Write the proportion equation
1,205,898.12 : 1,664,076.96 = 715,888.08 : x - Step 2: Convert to fraction form
1,205,898.12/1,664,076.96 = 715,888.08/x - Step 3: Cross multiply
1,205,898.12x = 1,664,076.96 × 715,888.08 - Step 4: Simplify right side
1,205,898.12x = 1,191,292,859,866.64 - Step 5: Solve for x
x = 1,191,292,859,866.64/1,205,898.12 - Step 6: Final answer
x = 987,888.48
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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.