Finding the Fourth Proportional to 3,210,338.24, 4,815,459.48 and 781,509.68
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Solution
The fourth proportional to 3,210,338.24, 4,815,459.48 and 781,509.68 is: 1,172,252.86
Step by Step Solution
- Step 1: Write the proportion equation
3,210,338.24 : 4,815,459.48 = 781,509.68 : x - Step 2: Convert to fraction form
3,210,338.24/4,815,459.48 = 781,509.68/x - Step 3: Cross multiply
3,210,338.24x = 4,815,459.48 × 781,509.68 - Step 4: Simplify right side
3,210,338.24x = 3,763,328,197,267.77 - Step 5: Solve for x
x = 3,763,328,197,267.77/3,210,338.24 - Step 6: Final answer
x = 1,172,252.86
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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.