Finding the Fourth Proportional to 961,129.80, 1,326,265.65 and 531,351.09
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Solution
The fourth proportional to 961,129.80, 1,326,265.65 and 531,351.09 is: 733,212.83
Step by Step Solution
- Step 1: Write the proportion equation
961,129.80 : 1,326,265.65 = 531,351.09 : x - Step 2: Convert to fraction form
961,129.80/1,326,265.65 = 531,351.09/x - Step 3: Cross multiply
961,129.80x = 1,326,265.65 × 531,351.09 - Step 4: Simplify right side
961,129.80x = 704,712,698,757.06 - Step 5: Solve for x
x = 704,712,698,757.06/961,129.80 - Step 6: Final answer
x = 733,212.83
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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.