Finding the Fourth Proportional to 752,415.84, 1,038,346.56 and 412,915.68
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Solution
The fourth proportional to 752,415.84, 1,038,346.56 and 412,915.68 is: 569,830.61
Step by Step Solution
- Step 1: Write the proportion equation
752,415.84 : 1,038,346.56 = 412,915.68 : x - Step 2: Convert to fraction form
752,415.84/1,038,346.56 = 412,915.68/x - Step 3: Cross multiply
752,415.84x = 1,038,346.56 × 412,915.68 - Step 4: Simplify right side
752,415.84x = 428,749,575,898.06 - Step 5: Solve for x
x = 428,749,575,898.06/752,415.84 - Step 6: Final answer
x = 569,830.61
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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.