Finding the Fourth Proportional to 1,403,494.74, 1,936,711.08 and 791,451.18
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Solution
The fourth proportional to 1,403,494.74, 1,936,711.08 and 791,451.18 is: 1,092,139.66
Step by Step Solution
- Step 1: Write the proportion equation
1,403,494.74 : 1,936,711.08 = 791,451.18 : x - Step 2: Convert to fraction form
1,403,494.74/1,936,711.08 = 791,451.18/x - Step 3: Cross multiply
1,403,494.74x = 1,936,711.08 × 791,451.18 - Step 4: Simplify right side
1,403,494.74x = 1,532,812,269,585.07 - Step 5: Solve for x
x = 1,532,812,269,585.07/1,403,494.74 - Step 6: Final answer
x = 1,092,139.66
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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.