Finding the Fourth Proportional to 1,310,656.81, 1,807,774.68 and 874,854.43
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Solution
The fourth proportional to 1,310,656.81, 1,807,774.68 and 874,854.43 is: 1,206,677.20
Step by Step Solution
- Step 1: Write the proportion equation
1,310,656.81 : 1,807,774.68 = 874,854.43 : x - Step 2: Convert to fraction form
1,310,656.81/1,807,774.68 = 874,854.43/x - Step 3: Cross multiply
1,310,656.81x = 1,807,774.68 × 874,854.43 - Step 4: Simplify right side
1,310,656.81x = 1,581,539,682,720.40 - Step 5: Solve for x
x = 1,581,539,682,720.40/1,310,656.81 - Step 6: Final answer
x = 1,206,677.20
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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.