Finding the Fourth Proportional to 640,320.07, 883,644.43 and 349,937.41
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Solution
The fourth proportional to 640,320.07, 883,644.43 and 349,937.41 is: 482,915.12
Step by Step Solution
- Step 1: Write the proportion equation
640,320.07 : 883,644.43 = 349,937.41 : x - Step 2: Convert to fraction form
640,320.07/883,644.43 = 349,937.41/x - Step 3: Cross multiply
640,320.07x = 883,644.43 × 349,937.41 - Step 4: Simplify right side
640,320.07x = 309,220,243,195.13 - Step 5: Solve for x
x = 309,220,243,195.13/640,320.07 - Step 6: Final answer
x = 482,915.12
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1.5x scale
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.