Finding the Fourth Proportional to 917,863.80, 1,376,795.70 and 707,911.80
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Solution
The fourth proportional to 917,863.80, 1,376,795.70 and 707,911.80 is: 1,061,867.70
Step by Step Solution
- Step 1: Write the proportion equation
917,863.80 : 1,376,795.70 = 707,911.80 : x - Step 2: Convert to fraction form
917,863.80/1,376,795.70 = 707,911.80/x - Step 3: Cross multiply
917,863.80x = 1,376,795.70 × 707,911.80 - Step 4: Simplify right side
917,863.80x = 974,649,922,219.26 - Step 5: Solve for x
x = 974,649,922,219.26/917,863.80 - Step 6: Final answer
x = 1,061,867.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.