Finding the Fourth Proportional to 1,281,920.84, 1,769,272.74 and 772,623.80
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Solution
The fourth proportional to 1,281,920.84, 1,769,272.74 and 772,623.80 is: 1,066,354.63
Step by Step Solution
- Step 1: Write the proportion equation
1,281,920.84 : 1,769,272.74 = 772,623.80 : x - Step 2: Convert to fraction form
1,281,920.84/1,769,272.74 = 772,623.80/x - Step 3: Cross multiply
1,281,920.84x = 1,769,272.74 × 772,623.80 - Step 4: Simplify right side
1,281,920.84x = 1,366,982,227,615.21 - Step 5: Solve for x
x = 1,366,982,227,615.21/1,281,920.84 - Step 6: Final answer
x = 1,066,354.63
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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.