Finding the Fourth Proportional to 688,468.74, 1,033,107.30 and 289,078.80
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Solution
The fourth proportional to 688,468.74, 1,033,107.30 and 289,078.80 is: 433,787.91
Step by Step Solution
- Step 1: Write the proportion equation
688,468.74 : 1,033,107.30 = 289,078.80 : x - Step 2: Convert to fraction form
688,468.74/1,033,107.30 = 289,078.80/x - Step 3: Cross multiply
688,468.74x = 1,033,107.30 × 289,078.80 - Step 4: Simplify right side
688,468.74x = 298,649,418,555.24 - Step 5: Solve for x
x = 298,649,418,555.24/688,468.74 - Step 6: Final answer
x = 433,787.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.