Finding the Fourth Proportional to 982,890.71, 1,356,164.79 and 553,013.99
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Solution
The fourth proportional to 982,890.71, 1,356,164.79 and 553,013.99 is: 763,033.06
Step by Step Solution
- Step 1: Write the proportion equation
982,890.71 : 1,356,164.79 = 553,013.99 : x - Step 2: Convert to fraction form
982,890.71/1,356,164.79 = 553,013.99/x - Step 3: Cross multiply
982,890.71x = 1,356,164.79 × 553,013.99 - Step 4: Simplify right side
982,890.71x = 749,978,100,957.11 - Step 5: Solve for x
x = 749,978,100,957.11/982,890.71 - Step 6: Final answer
x = 763,033.06
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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.