Finding the Fourth Proportional to 1,287,465.97, 1,776,521.35 and 771,098.87
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Solution
The fourth proportional to 1,287,465.97, 1,776,521.35 and 771,098.87 is: 1,064,007.62
Step by Step Solution
- Step 1: Write the proportion equation
1,287,465.97 : 1,776,521.35 = 771,098.87 : x - Step 2: Convert to fraction form
1,287,465.97/1,776,521.35 = 771,098.87/x - Step 3: Cross multiply
1,287,465.97x = 1,776,521.35 × 771,098.87 - Step 4: Simplify right side
1,287,465.97x = 1,369,873,605,515.87 - Step 5: Solve for x
x = 1,369,873,605,515.87/1,287,465.97 - Step 6: Final answer
x = 1,064,007.62
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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.