Finding the Fourth Proportional to 1,352,941.80, 2,029,412.70 and 689,389.80
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Solution
The fourth proportional to 1,352,941.80, 2,029,412.70 and 689,389.80 is: 1,034,084.70
Step by Step Solution
- Step 1: Write the proportion equation
1,352,941.80 : 2,029,412.70 = 689,389.80 : x - Step 2: Convert to fraction form
1,352,941.80/2,029,412.70 = 689,389.80/x - Step 3: Cross multiply
1,352,941.80x = 2,029,412.70 × 689,389.80 - Step 4: Simplify right side
1,352,941.80x = 1,399,056,415,370.46 - Step 5: Solve for x
x = 1,399,056,415,370.46/1,352,941.80 - Step 6: Final answer
x = 1,034,084.70
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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.