Finding the Fourth Proportional to 709,468.05, 979,087.53 and 403,588.77
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Solution
The fourth proportional to 709,468.05, 979,087.53 and 403,588.77 is: 556,964.80
Step by Step Solution
- Step 1: Write the proportion equation
709,468.05 : 979,087.53 = 403,588.77 : x - Step 2: Convert to fraction form
709,468.05/979,087.53 = 403,588.77/x - Step 3: Cross multiply
709,468.05x = 979,087.53 × 403,588.77 - Step 4: Simplify right side
709,468.05x = 395,148,731,955.04 - Step 5: Solve for x
x = 395,148,731,955.04/709,468.05 - Step 6: Final answer
x = 556,964.80
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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.