Finding the Fourth Proportional to 1,137,109.61, 1,569,214.62 and 620,867.99
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Solution
The fourth proportional to 1,137,109.61, 1,569,214.62 and 620,867.99 is: 856,799.66
Step by Step Solution
- Step 1: Write the proportion equation
1,137,109.61 : 1,569,214.62 = 620,867.99 : x - Step 2: Convert to fraction form
1,137,109.61/1,569,214.62 = 620,867.99/x - Step 3: Cross multiply
1,137,109.61x = 1,569,214.62 × 620,867.99 - Step 4: Simplify right side
1,137,109.61x = 974,275,130,921.05 - Step 5: Solve for x
x = 974,275,130,921.05/1,137,109.61 - Step 6: Final answer
x = 856,799.66
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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.