Finding the Fourth Proportional to 4,785,709.68, 7,179,954.36 and 1,547,178.12
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Solution
The fourth proportional to 4,785,709.68, 7,179,954.36 and 1,547,178.12 is: 2,321,216.50
Step by Step Solution
- Step 1: Write the proportion equation
4,785,709.68 : 7,179,954.36 = 1,547,178.12 : x - Step 2: Convert to fraction form
4,785,709.68/7,179,954.36 = 1,547,178.12/x - Step 3: Cross multiply
4,785,709.68x = 7,179,954.36 × 1,547,178.12 - Step 4: Simplify right side
4,785,709.68x = 11,108,668,288,390.61 - Step 5: Solve for x
x = 11,108,668,288,390.61/4,785,709.68 - Step 6: Final answer
x = 2,321,216.50
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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.