Finding the Fourth Proportional to 998,804.91, 1,498,251.12 and 288,904.71
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Solution
The fourth proportional to 998,804.91, 1,498,251.12 and 288,904.71 is: 433,369.72
Step by Step Solution
- Step 1: Write the proportion equation
998,804.91 : 1,498,251.12 = 288,904.71 : x - Step 2: Convert to fraction form
998,804.91/1,498,251.12 = 288,904.71/x - Step 3: Cross multiply
998,804.91x = 1,498,251.12 × 288,904.71 - Step 4: Simplify right side
998,804.91x = 432,851,805,330.78 - Step 5: Solve for x
x = 432,851,805,330.78/998,804.91 - Step 6: Final answer
x = 433,369.72
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1.5x scale
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.