Finding the Fourth Proportional to 1,138,207.02, 1,570,706.68 and 621,949.57
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Solution
The fourth proportional to 1,138,207.02, 1,570,706.68 and 621,949.57 is: 858,280.02
Step by Step Solution
- Step 1: Write the proportion equation
1,138,207.02 : 1,570,706.68 = 621,949.57 : x - Step 2: Convert to fraction form
1,138,207.02/1,570,706.68 = 621,949.57/x - Step 3: Cross multiply
1,138,207.02x = 1,570,706.68 × 621,949.57 - Step 4: Simplify right side
1,138,207.02x = 976,900,344,222.13 - Step 5: Solve for x
x = 976,900,344,222.13/1,138,207.02 - Step 6: Final answer
x = 858,280.02
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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.