Finding the Fourth Proportional to 1,899,135.39, 2,620,387.85 and 1,124,381.53
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Solution
The fourth proportional to 1,899,135.39, 2,620,387.85 and 1,124,381.53 is: 1,551,398.45
Step by Step Solution
- Step 1: Write the proportion equation
1,899,135.39 : 2,620,387.85 = 1,124,381.53 : x - Step 2: Convert to fraction form
1,899,135.39/2,620,387.85 = 1,124,381.53/x - Step 3: Cross multiply
1,899,135.39x = 2,620,387.85 × 1,124,381.53 - Step 4: Simplify right side
1,899,135.39x = 2,946,315,699,976.41 - Step 5: Solve for x
x = 2,946,315,699,976.41/1,899,135.39 - Step 6: Final answer
x = 1,551,398.45
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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.