Finding the Fourth Proportional to 903,298.11, 1,243,422.14 and 780,734.18
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Solution
The fourth proportional to 903,298.11, 1,243,422.14 and 780,734.18 is: 1,074,708.50
Step by Step Solution
- Step 1: Write the proportion equation
903,298.11 : 1,243,422.14 = 780,734.18 : x - Step 2: Convert to fraction form
903,298.11/1,243,422.14 = 780,734.18/x - Step 3: Cross multiply
903,298.11x = 1,243,422.14 × 780,734.18 - Step 4: Simplify right side
903,298.11x = 970,782,154,745.96 - Step 5: Solve for x
x = 970,782,154,745.96/903,298.11 - Step 6: Final answer
x = 1,074,708.50
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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.