Finding the Fourth Proportional to 1,565,917.50, 2,160,929.40 and 921,379.44
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Solution
The fourth proportional to 1,565,917.50, 2,160,929.40 and 921,379.44 is: 1,271,482.00
Step by Step Solution
- Step 1: Write the proportion equation
1,565,917.50 : 2,160,929.40 = 921,379.44 : x - Step 2: Convert to fraction form
1,565,917.50/2,160,929.40 = 921,379.44/x - Step 3: Cross multiply
1,565,917.50x = 2,160,929.40 × 921,379.44 - Step 4: Simplify right side
1,565,917.50x = 1,991,035,916,996.36 - Step 5: Solve for x
x = 1,991,035,916,996.36/1,565,917.50 - Step 6: Final answer
x = 1,271,482.00
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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.