Finding the Fourth Proportional to 2,121,425.40, 2,927,875.58 and 1,191,237.57
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Solution
The fourth proportional to 2,121,425.40, 2,927,875.58 and 1,191,237.57 is: 1,644,081.09
Step by Step Solution
- Step 1: Write the proportion equation
2,121,425.40 : 2,927,875.58 = 1,191,237.57 : x - Step 2: Convert to fraction form
2,121,425.40/2,927,875.58 = 1,191,237.57/x - Step 3: Cross multiply
2,121,425.40x = 2,927,875.58 × 1,191,237.57 - Step 4: Simplify right side
2,121,425.40x = 3,487,795,391,181.54 - Step 5: Solve for x
x = 3,487,795,391,181.54/2,121,425.40 - Step 6: Final answer
x = 1,644,081.09
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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.