Finding the Fourth Proportional to 896,090.70, 1,344,136.05 and 398,426.70
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Solution
The fourth proportional to 896,090.70, 1,344,136.05 and 398,426.70 is: 597,640.05
Step by Step Solution
- Step 1: Write the proportion equation
896,090.70 : 1,344,136.05 = 398,426.70 : x - Step 2: Convert to fraction form
896,090.70/1,344,136.05 = 398,426.70/x - Step 3: Cross multiply
896,090.70x = 1,344,136.05 × 398,426.70 - Step 4: Simplify right side
896,090.70x = 535,539,690,752.54 - Step 5: Solve for x
x = 535,539,690,752.54/896,090.70 - Step 6: Final answer
x = 597,640.05
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1.5x scale
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.