Finding the Fourth Proportional to 423,099.99, 583,963.94 and 287,177.74
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Solution
The fourth proportional to 423,099.99, 583,963.94 and 287,177.74 is: 396,363.62
Step by Step Solution
- Step 1: Write the proportion equation
423,099.99 : 583,963.94 = 287,177.74 : x - Step 2: Convert to fraction form
423,099.99/583,963.94 = 287,177.74/x - Step 3: Cross multiply
423,099.99x = 583,963.94 × 287,177.74 - Step 4: Simplify right side
423,099.99x = 167,701,444,530.70 - Step 5: Solve for x
x = 167,701,444,530.70/423,099.99 - Step 6: Final answer
x = 396,363.62
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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.