Finding the Fourth Proportional to 2,121,121.61, 2,927,209.41 and 1,154,314.25
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Solution
The fourth proportional to 2,121,121.61, 2,927,209.41 and 1,154,314.25 is: 1,592,987.18
Step by Step Solution
- Step 1: Write the proportion equation
2,121,121.61 : 2,927,209.41 = 1,154,314.25 : x - Step 2: Convert to fraction form
2,121,121.61/2,927,209.41 = 1,154,314.25/x - Step 3: Cross multiply
2,121,121.61x = 2,927,209.41 × 1,154,314.25 - Step 4: Simplify right side
2,121,121.61x = 3,378,919,520,061.05 - Step 5: Solve for x
x = 3,378,919,520,061.05/2,121,121.61 - Step 6: Final answer
x = 1,592,987.18
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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.