Finding the Fourth Proportional to 988,688.09, 1,483,475.21 and 455,923.55
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Solution
The fourth proportional to 988,688.09, 1,483,475.21 and 455,923.55 is: 684,089.64
Step by Step Solution
- Step 1: Write the proportion equation
988,688.09 : 1,483,475.21 = 455,923.55 : x - Step 2: Convert to fraction form
988,688.09/1,483,475.21 = 455,923.55/x - Step 3: Cross multiply
988,688.09x = 1,483,475.21 × 455,923.55 - Step 4: Simplify right side
988,688.09x = 676,351,274,383.20 - Step 5: Solve for x
x = 676,351,274,383.20/988,688.09 - Step 6: Final answer
x = 684,089.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.