Finding the Fourth Proportional to 931,354.84, 1,284,980.70 and 543,890.76
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Solution
The fourth proportional to 931,354.84, 1,284,980.70 and 543,890.76 is: 750,400.49
Step by Step Solution
- Step 1: Write the proportion equation
931,354.84 : 1,284,980.70 = 543,890.76 : x - Step 2: Convert to fraction form
931,354.84/1,284,980.70 = 543,890.76/x - Step 3: Cross multiply
931,354.84x = 1,284,980.70 × 543,890.76 - Step 4: Simplify right side
931,354.84x = 698,889,129,508.33 - Step 5: Solve for x
x = 698,889,129,508.33/931,354.84 - Step 6: Final answer
x = 750,400.49
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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.