Finding the Fourth Proportional to 740,632.22, 1,022,155.58 and 418,363.07
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Solution
The fourth proportional to 740,632.22, 1,022,155.58 and 418,363.07 is: 577,387.99
Step by Step Solution
- Step 1: Write the proportion equation
740,632.22 : 1,022,155.58 = 418,363.07 : x - Step 2: Convert to fraction form
740,632.22/1,022,155.58 = 418,363.07/x - Step 3: Cross multiply
740,632.22x = 1,022,155.58 × 418,363.07 - Step 4: Simplify right side
740,632.22x = 427,632,148,498.87 - Step 5: Solve for x
x = 427,632,148,498.87/740,632.22 - Step 6: Final answer
x = 577,387.99
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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.