Finding the Fourth Proportional to 831,223.74, 1,244,586.84 and 431,023.23
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Solution
The fourth proportional to 831,223.74, 1,244,586.84 and 431,023.23 is: 645,368.76
Step by Step Solution
- Step 1: Write the proportion equation
831,223.74 : 1,244,586.84 = 431,023.23 : x - Step 2: Convert to fraction form
831,223.74/1,244,586.84 = 431,023.23/x - Step 3: Cross multiply
831,223.74x = 1,244,586.84 × 431,023.23 - Step 4: Simplify right side
831,223.74x = 536,445,838,175.96 - Step 5: Solve for x
x = 536,445,838,175.96/831,223.74 - Step 6: Final answer
x = 645,368.76
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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.