Finding the Fourth Proportional to 818,351.87, 1,129,360.63 and 455,775.71
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Solution
The fourth proportional to 818,351.87, 1,129,360.63 and 455,775.71 is: 628,990.00
Step by Step Solution
- Step 1: Write the proportion equation
818,351.87 : 1,129,360.63 = 455,775.71 : x - Step 2: Convert to fraction form
818,351.87/1,129,360.63 = 455,775.71/x - Step 3: Cross multiply
818,351.87x = 1,129,360.63 × 455,775.71 - Step 4: Simplify right side
818,351.87x = 514,735,142,984.30 - Step 5: Solve for x
x = 514,735,142,984.30/818,351.87 - Step 6: Final answer
x = 628,990.00
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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.