Finding the Fourth Proportional to 1,980,108.74, 2,971,412.61 and 842,869.20
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Solution
The fourth proportional to 1,980,108.74, 2,971,412.61 and 842,869.20 is: 1,264,835.67
Step by Step Solution
- Step 1: Write the proportion equation
1,980,108.74 : 2,971,412.61 = 842,869.20 : x - Step 2: Convert to fraction form
1,980,108.74/2,971,412.61 = 842,869.20/x - Step 3: Cross multiply
1,980,108.74x = 2,971,412.61 × 842,869.20 - Step 4: Simplify right side
1,980,108.74x = 2,504,512,177,442.65 - Step 5: Solve for x
x = 2,504,512,177,442.65/1,980,108.74 - Step 6: Final answer
x = 1,264,835.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.