Finding the Fourth Proportional to 1,148,793.84, 1,585,363.32 and 639,530.64
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Solution
The fourth proportional to 1,148,793.84, 1,585,363.32 and 639,530.64 is: 882,567.77
Step by Step Solution
- Step 1: Write the proportion equation
1,148,793.84 : 1,585,363.32 = 639,530.64 : x - Step 2: Convert to fraction form
1,148,793.84/1,585,363.32 = 639,530.64/x - Step 3: Cross multiply
1,148,793.84x = 1,585,363.32 × 639,530.64 - Step 4: Simplify right side
1,148,793.84x = 1,013,888,418,672.12 - Step 5: Solve for x
x = 1,013,888,418,672.12/1,148,793.84 - Step 6: Final answer
x = 882,567.77
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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.