Finding the Fourth Proportional to 636,837.99, 878,962.05 and 365,088.36
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Solution
The fourth proportional to 636,837.99, 878,962.05 and 365,088.36 is: 503,893.95
Step by Step Solution
- Step 1: Write the proportion equation
636,837.99 : 878,962.05 = 365,088.36 : x - Step 2: Convert to fraction form
636,837.99/878,962.05 = 365,088.36/x - Step 3: Cross multiply
636,837.99x = 878,962.05 × 365,088.36 - Step 4: Simplify right side
636,837.99x = 320,898,811,688.68 - Step 5: Solve for x
x = 320,898,811,688.68/636,837.99 - Step 6: Final answer
x = 503,893.95
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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.