Finding the Fourth Proportional to 1,281,922.84, 1,769,275.50 and 772,625.80
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Solution
The fourth proportional to 1,281,922.84, 1,769,275.50 and 772,625.80 is: 1,066,357.39
Step by Step Solution
- Step 1: Write the proportion equation
1,281,922.84 : 1,769,275.50 = 772,625.80 : x - Step 2: Convert to fraction form
1,281,922.84/1,769,275.50 = 772,625.80/x - Step 3: Cross multiply
1,281,922.84x = 1,769,275.50 × 772,625.80 - Step 4: Simplify right side
1,281,922.84x = 1,366,987,898,607.90 - Step 5: Solve for x
x = 1,366,987,898,607.90/1,281,922.84 - Step 6: Final answer
x = 1,066,357.39
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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.