Finding the Fourth Proportional to 2,121,140.53, 2,927,234.99 and 1,154,332.09
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Solution
The fourth proportional to 2,121,140.53, 2,927,234.99 and 1,154,332.09 is: 1,593,011.51
Step by Step Solution
- Step 1: Write the proportion equation
2,121,140.53 : 2,927,234.99 = 1,154,332.09 : x - Step 2: Convert to fraction form
2,121,140.53/2,927,234.99 = 1,154,332.09/x - Step 3: Cross multiply
2,121,140.53x = 2,927,234.99 × 1,154,332.09 - Step 4: Simplify right side
2,121,140.53x = 3,379,001,279,495.57 - Step 5: Solve for x
x = 3,379,001,279,495.57/2,121,140.53 - Step 6: Final answer
x = 1,593,011.51
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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.