Finding the Fourth Proportional to 983,902.05, 1,475,853.08 and 668,974.05
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Solution
The fourth proportional to 983,902.05, 1,475,853.08 and 668,974.05 is: 1,003,461.08
Step by Step Solution
- Step 1: Write the proportion equation
983,902.05 : 1,475,853.08 = 668,974.05 : x - Step 2: Convert to fraction form
983,902.05/1,475,853.08 = 668,974.05/x - Step 3: Cross multiply
983,902.05x = 1,475,853.08 × 668,974.05 - Step 4: Simplify right side
983,902.05x = 987,307,408,787.70 - Step 5: Solve for x
x = 987,307,408,787.70/983,902.05 - Step 6: Final answer
x = 1,003,461.08
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1.5x scale
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.