Finding the Fourth Proportional to 1,125,665.70, 1,553,390.06 and 628,953.65
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Solution
The fourth proportional to 1,125,665.70, 1,553,390.06 and 628,953.65 is: 867,940.06
Step by Step Solution
- Step 1: Write the proportion equation
1,125,665.70 : 1,553,390.06 = 628,953.65 : x - Step 2: Convert to fraction form
1,125,665.70/1,553,390.06 = 628,953.65/x - Step 3: Cross multiply
1,125,665.70x = 1,553,390.06 × 628,953.65 - Step 4: Simplify right side
1,125,665.70x = 977,010,353,566.58 - Step 5: Solve for x
x = 977,010,353,566.58/1,125,665.70 - Step 6: Final answer
x = 867,940.06
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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.