Finding the Fourth Proportional to 939,867.84, 1,411,201.44 and 379,995.84
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Solution
The fourth proportional to 939,867.84, 1,411,201.44 and 379,995.84 is: 570,559.66
Step by Step Solution
- Step 1: Write the proportion equation
939,867.84 : 1,411,201.44 = 379,995.84 : x - Step 2: Convert to fraction form
939,867.84/1,411,201.44 = 379,995.84/x - Step 3: Cross multiply
939,867.84x = 1,411,201.44 × 379,995.84 - Step 4: Simplify right side
939,867.84x = 536,250,676,602.01 - Step 5: Solve for x
x = 536,250,676,602.01/939,867.84 - Step 6: Final answer
x = 570,559.66
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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.