Finding the Fourth Proportional to 888,403.68, 1,226,026.08 and 485,995.68
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Solution
The fourth proportional to 888,403.68, 1,226,026.08 and 485,995.68 is: 670,689.90
Step by Step Solution
- Step 1: Write the proportion equation
888,403.68 : 1,226,026.08 = 485,995.68 : x - Step 2: Convert to fraction form
888,403.68/1,226,026.08 = 485,995.68/x - Step 3: Cross multiply
888,403.68x = 1,226,026.08 × 485,995.68 - Step 4: Simplify right side
888,403.68x = 595,843,378,447.34 - Step 5: Solve for x
x = 595,843,378,447.34/888,403.68 - Step 6: Final answer
x = 670,689.90
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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.