Finding the Fourth Proportional to 1,125,853.13, 1,688,954.65 and 378,074.09
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Solution
The fourth proportional to 1,125,853.13, 1,688,954.65 and 378,074.09 is: 567,169.88
Step by Step Solution
- Step 1: Write the proportion equation
1,125,853.13 : 1,688,954.65 = 378,074.09 : x - Step 2: Convert to fraction form
1,125,853.13/1,688,954.65 = 378,074.09/x - Step 3: Cross multiply
1,125,853.13x = 1,688,954.65 × 378,074.09 - Step 4: Simplify right side
1,125,853.13x = 638,549,982,960.06 - Step 5: Solve for x
x = 638,549,982,960.06/1,125,853.13 - Step 6: Final answer
x = 567,169.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.