Finding the Fourth Proportional to 427,328.92, 640,468.48 and 239,946.76
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Solution
The fourth proportional to 427,328.92, 640,468.48 and 239,946.76 is: 359,625.41
Step by Step Solution
- Step 1: Write the proportion equation
427,328.92 : 640,468.48 = 239,946.76 : x - Step 2: Convert to fraction form
427,328.92/640,468.48 = 239,946.76/x - Step 3: Cross multiply
427,328.92x = 640,468.48 × 239,946.76 - Step 4: Simplify right side
427,328.92x = 153,678,336,658.13 - Step 5: Solve for x
x = 153,678,336,658.13/427,328.92 - Step 6: Final answer
x = 359,625.41
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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.