Finding the Fourth Proportional to 1,051,950.51, 1,451,349.90 and 643,626.68
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Solution
The fourth proportional to 1,051,950.51, 1,451,349.90 and 643,626.68 is: 887,995.68
Step by Step Solution
- Step 1: Write the proportion equation
1,051,950.51 : 1,451,349.90 = 643,626.68 : x - Step 2: Convert to fraction form
1,051,950.51/1,451,349.90 = 643,626.68/x - Step 3: Cross multiply
1,051,950.51x = 1,451,349.90 × 643,626.68 - Step 4: Simplify right side
1,051,950.51x = 934,127,510,398.58 - Step 5: Solve for x
x = 934,127,510,398.58/1,051,950.51 - Step 6: Final answer
x = 887,995.68
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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.