Finding the Fourth Proportional to 961,116.84, 1,326,324.78 and 685,981.31
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Solution
The fourth proportional to 961,116.84, 1,326,324.78 and 685,981.31 is: 946,642.45
Step by Step Solution
- Step 1: Write the proportion equation
961,116.84 : 1,326,324.78 = 685,981.31 : x - Step 2: Convert to fraction form
961,116.84/1,326,324.78 = 685,981.31/x - Step 3: Cross multiply
961,116.84x = 1,326,324.78 × 685,981.31 - Step 4: Simplify right side
961,116.84x = 909,834,003,438.24 - Step 5: Solve for x
x = 909,834,003,438.24/961,116.84 - Step 6: Final answer
x = 946,642.45
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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.