Finding the Fourth Proportional to 1,163,810.70, 1,607,067.95 and 858,416.40
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Solution
The fourth proportional to 1,163,810.70, 1,607,067.95 and 858,416.40 is: 1,185,358.99
Step by Step Solution
- Step 1: Write the proportion equation
1,163,810.70 : 1,607,067.95 = 858,416.40 : x - Step 2: Convert to fraction form
1,163,810.70/1,607,067.95 = 858,416.40/x - Step 3: Cross multiply
1,163,810.70x = 1,607,067.95 × 858,416.40 - Step 4: Simplify right side
1,163,810.70x = 1,379,533,479,902.30 - Step 5: Solve for x
x = 1,379,533,479,902.30/1,163,810.70 - Step 6: Final answer
x = 1,185,358.99
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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.