Finding the Fourth Proportional to 1,817,748.70, 2,507,571.33 and 1,387,281.49
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Solution
The fourth proportional to 1,817,748.70, 2,507,571.33 and 1,387,281.49 is: 1,913,744.89
Step by Step Solution
- Step 1: Write the proportion equation
1,817,748.70 : 2,507,571.33 = 1,387,281.49 : x - Step 2: Convert to fraction form
1,817,748.70/2,507,571.33 = 1,387,281.49/x - Step 3: Cross multiply
1,817,748.70x = 2,507,571.33 × 1,387,281.49 - Step 4: Simplify right side
1,817,748.70x = 3,478,707,290,963.68 - Step 5: Solve for x
x = 3,478,707,290,963.68/1,817,748.70 - Step 6: Final answer
x = 1,913,744.89
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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.