Finding the Fourth Proportional to 709,808.79, 979,499.31 and 403,878.99
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Solution
The fourth proportional to 709,808.79, 979,499.31 and 403,878.99 is: 557,332.06
Step by Step Solution
- Step 1: Write the proportion equation
709,808.79 : 979,499.31 = 403,878.99 : x - Step 2: Convert to fraction form
709,808.79/979,499.31 = 403,878.99/x - Step 3: Cross multiply
709,808.79x = 979,499.31 × 403,878.99 - Step 4: Simplify right side
709,808.79x = 395,599,192,028.50 - Step 5: Solve for x
x = 395,599,192,028.50/709,808.79 - Step 6: Final answer
x = 557,332.06
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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.