Finding the Fourth Proportional to 1,103,913.14, 1,655,869.84 and 345,813.68
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Solution
The fourth proportional to 1,103,913.14, 1,655,869.84 and 345,813.68 is: 518,720.56
Step by Step Solution
- Step 1: Write the proportion equation
1,103,913.14 : 1,655,869.84 = 345,813.68 : x - Step 2: Convert to fraction form
1,103,913.14/1,655,869.84 = 345,813.68/x - Step 3: Cross multiply
1,103,913.14x = 1,655,869.84 × 345,813.68 - Step 4: Simplify right side
1,103,913.14x = 572,622,442,971.41 - Step 5: Solve for x
x = 572,622,442,971.41/1,103,913.14 - Step 6: Final answer
x = 518,720.56
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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.