Finding the Fourth Proportional to 939,135.71, 1,406,814.41 and 711,820.09
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Solution
The fourth proportional to 939,135.71, 1,406,814.41 and 711,820.09 is: 1,066,298.25
Step by Step Solution
- Step 1: Write the proportion equation
939,135.71 : 1,406,814.41 = 711,820.09 : x - Step 2: Convert to fraction form
939,135.71/1,406,814.41 = 711,820.09/x - Step 3: Cross multiply
939,135.71x = 1,406,814.41 × 711,820.09 - Step 4: Simplify right side
939,135.71x = 1,001,398,759,939.50 - Step 5: Solve for x
x = 1,001,398,759,939.50/939,135.71 - Step 6: Final answer
x = 1,066,298.25
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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.