Finding the Fourth Proportional to 1,012,193.55, 1,396,864.71 and 553,338.68
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Solution
The fourth proportional to 1,012,193.55, 1,396,864.71 and 553,338.68 is: 763,627.93
Step by Step Solution
- Step 1: Write the proportion equation
1,012,193.55 : 1,396,864.71 = 553,338.68 : x - Step 2: Convert to fraction form
1,012,193.55/1,396,864.71 = 553,338.68/x - Step 3: Cross multiply
1,012,193.55x = 1,396,864.71 × 553,338.68 - Step 4: Simplify right side
1,012,193.55x = 772,939,267,785.66 - Step 5: Solve for x
x = 772,939,267,785.66/1,012,193.55 - Step 6: Final answer
x = 763,627.93
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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.