Finding the Fourth Proportional to 2,421,169.64, 3,341,106.29 and 1,387,936.67
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Solution
The fourth proportional to 2,421,169.64, 3,341,106.29 and 1,387,936.67 is: 1,915,290.81
Step by Step Solution
- Step 1: Write the proportion equation
2,421,169.64 : 3,341,106.29 = 1,387,936.67 : x - Step 2: Convert to fraction form
2,421,169.64/3,341,106.29 = 1,387,936.67/x - Step 3: Cross multiply
2,421,169.64x = 3,341,106.29 × 1,387,936.67 - Step 4: Simplify right side
2,421,169.64x = 4,637,243,950,081.26 - Step 5: Solve for x
x = 4,637,243,950,081.26/2,421,169.64 - Step 6: Final answer
x = 1,915,290.81
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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.