Finding the Fourth Proportional to 568,217.49, 784,156.70 and 310,111.09
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Solution
The fourth proportional to 568,217.49, 784,156.70 and 310,111.09 is: 427,962.34
Step by Step Solution
- Step 1: Write the proportion equation
568,217.49 : 784,156.70 = 310,111.09 : x - Step 2: Convert to fraction form
568,217.49/784,156.70 = 310,111.09/x - Step 3: Cross multiply
568,217.49x = 784,156.70 × 310,111.09 - Step 4: Simplify right side
568,217.49x = 243,175,688,967.80 - Step 5: Solve for x
x = 243,175,688,967.80/568,217.49 - Step 6: Final answer
x = 427,962.34
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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.