Finding the Fourth Proportional to 915,363.99, 1,263,276.90 and 507,593.70
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Solution
The fourth proportional to 915,363.99, 1,263,276.90 and 507,593.70 is: 700,520.67
Step by Step Solution
- Step 1: Write the proportion equation
915,363.99 : 1,263,276.90 = 507,593.70 : x - Step 2: Convert to fraction form
915,363.99/1,263,276.90 = 507,593.70/x - Step 3: Cross multiply
915,363.99x = 1,263,276.90 × 507,593.70 - Step 4: Simplify right side
915,363.99x = 641,231,395,795.53 - Step 5: Solve for x
x = 641,231,395,795.53/915,363.99 - Step 6: Final answer
x = 700,520.67
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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.