Finding the Fourth Proportional to 689,497.20, 1,032,326.10 and 351,808.20
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Solution
The fourth proportional to 689,497.20, 1,032,326.10 and 351,808.20 is: 526,732.79
Step by Step Solution
- Step 1: Write the proportion equation
689,497.20 : 1,032,326.10 = 351,808.20 : x - Step 2: Convert to fraction form
689,497.20/1,032,326.10 = 351,808.20/x - Step 3: Cross multiply
689,497.20x = 1,032,326.10 × 351,808.20 - Step 4: Simplify right side
689,497.20x = 363,180,787,054.02 - Step 5: Solve for x
x = 363,180,787,054.02/689,497.20 - Step 6: Final answer
x = 526,732.79
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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.