Finding the Fourth Proportional to 1,005,001.70, 1,387,121.08 and 618,149.60
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Solution
The fourth proportional to 1,005,001.70, 1,387,121.08 and 618,149.60 is: 853,180.99
Step by Step Solution
- Step 1: Write the proportion equation
1,005,001.70 : 1,387,121.08 = 618,149.60 : x - Step 2: Convert to fraction form
1,005,001.70/1,387,121.08 = 618,149.60/x - Step 3: Cross multiply
1,005,001.70x = 1,387,121.08 × 618,149.60 - Step 4: Simplify right side
1,005,001.70x = 857,448,340,753.57 - Step 5: Solve for x
x = 857,448,340,753.57/1,005,001.70 - Step 6: Final answer
x = 853,180.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.