Finding the Fourth Proportional to 636,787.05, 878,747.75 and 350,307.21
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Solution
The fourth proportional to 636,787.05, 878,747.75 and 350,307.21 is: 483,413.84
Step by Step Solution
- Step 1: Write the proportion equation
636,787.05 : 878,747.75 = 350,307.21 : x - Step 2: Convert to fraction form
636,787.05/878,747.75 = 350,307.21/x - Step 3: Cross multiply
636,787.05x = 878,747.75 × 350,307.21 - Step 4: Simplify right side
636,787.05x = 307,831,670,844.74 - Step 5: Solve for x
x = 307,831,670,844.74/636,787.05 - Step 6: Final answer
x = 483,413.84
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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.