Finding the Fourth Proportional to 1,931,663.07, 2,665,154.82 and 1,207,246.65
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Solution
The fourth proportional to 1,931,663.07, 2,665,154.82 and 1,207,246.65 is: 1,665,662.75
Step by Step Solution
- Step 1: Write the proportion equation
1,931,663.07 : 2,665,154.82 = 1,207,246.65 : x - Step 2: Convert to fraction form
1,931,663.07/2,665,154.82 = 1,207,246.65/x - Step 3: Cross multiply
1,931,663.07x = 2,665,154.82 × 1,207,246.65 - Step 4: Simplify right side
1,931,663.07x = 3,217,499,228,176.35 - Step 5: Solve for x
x = 3,217,499,228,176.35/1,931,663.07 - Step 6: Final answer
x = 1,665,662.75
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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.