Finding the Fourth Proportional to 1,913,675.76, 2,640,860.28 and 1,054,216.08
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Solution
The fourth proportional to 1,913,675.76, 2,640,860.28 and 1,054,216.08 is: 1,454,811.43
Step by Step Solution
- Step 1: Write the proportion equation
1,913,675.76 : 2,640,860.28 = 1,054,216.08 : x - Step 2: Convert to fraction form
1,913,675.76/2,640,860.28 = 1,054,216.08/x - Step 3: Cross multiply
1,913,675.76x = 2,640,860.28 × 1,054,216.08 - Step 4: Simplify right side
1,913,675.76x = 2,784,037,372,209.30 - Step 5: Solve for x
x = 2,784,037,372,209.30/1,913,675.76 - Step 6: Final answer
x = 1,454,811.43
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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.