Finding the Fourth Proportional to 1,358,343.81, 1,874,404.80 and 785,421.09
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Solution
The fourth proportional to 1,358,343.81, 1,874,404.80 and 785,421.09 is: 1,083,817.70
Step by Step Solution
- Step 1: Write the proportion equation
1,358,343.81 : 1,874,404.80 = 785,421.09 : x - Step 2: Convert to fraction form
1,358,343.81/1,874,404.80 = 785,421.09/x - Step 3: Cross multiply
1,358,343.81x = 1,874,404.80 × 785,421.09 - Step 4: Simplify right side
1,358,343.81x = 1,472,197,061,117.23 - Step 5: Solve for x
x = 1,472,197,061,117.23/1,358,343.81 - Step 6: Final answer
x = 1,083,817.70
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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.