Finding the Fourth Proportional to 831,569.68, 1,246,801.56 and 457,768.72
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Solution
The fourth proportional to 831,569.68, 1,246,801.56 and 457,768.72 is: 686,348.68
Step by Step Solution
- Step 1: Write the proportion equation
831,569.68 : 1,246,801.56 = 457,768.72 : x - Step 2: Convert to fraction form
831,569.68/1,246,801.56 = 457,768.72/x - Step 3: Cross multiply
831,569.68x = 1,246,801.56 × 457,768.72 - Step 4: Simplify right side
831,569.68x = 570,746,754,215.20 - Step 5: Solve for x
x = 570,746,754,215.20/831,569.68 - Step 6: Final answer
x = 686,348.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.